Update editorconfig and fix all new warnings.

.editorconfig

@@ -1,5 +1,5 @@
-# Version: 2.1.0 (Using https://semver.org/)
-# Updated: 2021-03-03
+# Version: 4.1.1 (Using https://semver.org/)
+# Updated: 2022-05-23
 # See https://github.com/RehanSaeed/EditorConfig/releases for release notes.
 # See https://github.com/RehanSaeed/EditorConfig for updates to this file.
 # See http://EditorConfig.org for more information about .editorconfig files.
@@ -49,11 +49,11 @@ indent_size = 2
 indent_size = 2
 
 # Markdown Files
-[*.md]
+[*.{md,mdx}]
 trim_trailing_whitespace = false
 
 # Web Files
-[*.{htm,html,js,jsm,ts,tsx,css,sass,scss,less,svg,vue}]
+[*.{htm,html,js,jsm,ts,tsx,cjs,cts,ctsx,mjs,mts,mtsx,css,sass,scss,less,pcss,svg,vue}]
 indent_size = 2
 
 # Batch Files
@@ -75,7 +75,7 @@ indent_style = tab
 
 [*.{cs,csx,cake,vb,vbx}]
 # Default Severity for all .NET Code Style rules below
-dotnet_analyzer_diagnostic.category-style.severity = warning
+dotnet_analyzer_diagnostic.severity = warning
 
 ##########################################
 # Language Rules
@@ -128,14 +128,15 @@ file_header_template = Copyright (c) Six Labors.\nLicensed under the Six Labors
 # dotnet_diagnostic.SA1636.severity = none
 
 # Undocumented
-dotnet_style_operator_placement_when_wrapping = end_of_line
+dotnet_style_operator_placement_when_wrapping = end_of_line:warning
+csharp_style_prefer_null_check_over_type_check = true:warning
 
 # C# Style Rules
 # https://docs.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/language-rules#c-style-rules
 [*.{cs,csx,cake}]
 # 'var' preferences
-csharp_style_var_for_built_in_types = never
-csharp_style_var_when_type_is_apparent = true:warning
+csharp_style_var_for_built_in_types = false:warning
+csharp_style_var_when_type_is_apparent = false:warning
 csharp_style_var_elsewhere = false:warning
 # Expression-bodied members
 csharp_style_expression_bodied_methods = true:warning
@@ -200,12 +201,15 @@ dotnet_diagnostic.IDE0059.severity = suggestion
 # Organize using directives
 dotnet_sort_system_directives_first = true
 dotnet_separate_import_directive_groups = false
+# Dotnet namespace options
+dotnet_style_namespace_match_folder = true:suggestion
+dotnet_diagnostic.IDE0130.severity = suggestion
 
 # C# formatting rules
 # https://docs.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/formatting-rules#c-formatting-rules
 [*.{cs,csx,cake}]
 # Newline options
-# https://docs.microsoft.com/visualstudio/ide/editorconfig-formatting-conventions#new-line-options
+# https://docs.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/formatting-rules#new-line-options
 csharp_new_line_before_open_brace = all
 csharp_new_line_before_else = true
 csharp_new_line_before_catch = true
@@ -214,7 +218,7 @@ csharp_new_line_before_members_in_object_initializers = true
 csharp_new_line_before_members_in_anonymous_types = true
 csharp_new_line_between_query_expression_clauses = true
 # Indentation options
-# https://docs.microsoft.com/visualstudio/ide/editorconfig-formatting-conventions#indentation-options
+# https://docs.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/formatting-rules#indentation-options
 csharp_indent_case_contents = true
 csharp_indent_switch_labels = true
 csharp_indent_labels = no_change
@@ -222,7 +226,7 @@ csharp_indent_block_contents = true
 csharp_indent_braces = false
 csharp_indent_case_contents_when_block = false
 # Spacing options
-# https://docs.microsoft.com/visualstudio/ide/editorconfig-formatting-conventions#spacing-options
+# https://docs.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/formatting-rules#spacing-options
 csharp_space_after_cast = false
 csharp_space_after_keywords_in_control_flow_statements = true
 csharp_space_between_parentheses = false
@@ -246,7 +250,7 @@ csharp_space_before_open_square_brackets = false
 csharp_space_between_empty_square_brackets = false
 csharp_space_between_square_brackets = false
 # Wrap options
-# https://docs.microsoft.com/visualstudio/ide/editorconfig-formatting-conventions#wrap-options
+# https://docs.microsoft.com/dotnet/fundamentals/code-analysis/style-rules/formatting-rules#wrap-options
 csharp_preserve_single_line_statements = false
 csharp_preserve_single_line_blocks = true
 
@@ -448,4 +452,4 @@ dotnet_naming_rule.parameters_rule.severity             = warning
 # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 # OTHER DEALINGS IN THE SOFTWARE.
-##########################################
+##########################################

shared-infrastructure

@@ -1 +1 @@
-Subproject commit 86af5a82198c21ce6889370428eb97d1fa7b41ff
+Subproject commit 5eb77e2d9eb4f0ece012c996941ab78db1af2a41

src/ImageSharp/Advanced/AdvancedImageExtensions.cs

@@ -3,6 +3,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.IO;
 using System.Text;
 using System.Threading;
@@ -34,11 +35,11 @@ namespace SixLabors.ImageSharp.Advanced
             IImageFormat format = source.GetConfiguration().ImageFormatsManager.FindFormatByFileExtension(ext);
             if (format is null)
             {
-                var sb = new StringBuilder();
-                sb.AppendLine($"No encoder was found for extension '{ext}'. Registered encoders include:");
+                StringBuilder sb = new();
+                sb.AppendLine(CultureInfo.InvariantCulture, $"No encoder was found for extension '{ext}'. Registered encoders include:");
                 foreach (IImageFormat fmt in source.GetConfiguration().ImageFormats)
                 {
-                    sb.AppendFormat(" - {0} : {1}{2}", fmt.Name, string.Join(", ", fmt.FileExtensions), Environment.NewLine);
+                    sb.AppendFormat(CultureInfo.InvariantCulture, " - {0} : {1}{2}", fmt.Name, string.Join(", ", fmt.FileExtensions), Environment.NewLine);
                 }
 
                 throw new NotSupportedException(sb.ToString());
@@ -48,11 +49,11 @@ namespace SixLabors.ImageSharp.Advanced
 
             if (encoder is null)
             {
-                var sb = new StringBuilder();
-                sb.AppendLine($"No encoder was found for extension '{ext}' using image format '{format.Name}'. Registered encoders include:");
+                StringBuilder sb = new();
+                sb.AppendLine(CultureInfo.InvariantCulture, $"No encoder was found for extension '{ext}' using image format '{format.Name}'. Registered encoders include:");
                 foreach (KeyValuePair<IImageFormat, IImageEncoder> enc in source.GetConfiguration().ImageFormatsManager.ImageEncoders)
                 {
-                    sb.AppendFormat(" - {0} : {1}{2}", enc.Key, enc.Value.GetType().Name, Environment.NewLine);
+                    sb.AppendFormat(CultureInfo.InvariantCulture, " - {0} : {1}{2}", enc.Key, enc.Value.GetType().Name, Environment.NewLine);
                 }
 
                 throw new NotSupportedException(sb.ToString());
@@ -116,6 +117,7 @@ namespace SixLabors.ImageSharp.Advanced
         /// Certain Image Processors may invalidate the returned <see cref="IMemoryGroup{T}"/> and all it's buffers,
         /// therefore it's not recommended to mutate the image while holding a reference to it's <see cref="IMemoryGroup{T}"/>.
         /// </remarks>
+        /// <exception cref="ArgumentNullException">Thrown when the <paramref name="source"/> in <see langword="null"/>.</exception>
         public static IMemoryGroup<TPixel> GetPixelMemoryGroup<TPixel>(this ImageFrame<TPixel> source)
             where TPixel : unmanaged, IPixel<TPixel>
             => source?.PixelBuffer.FastMemoryGroup.View ?? throw new ArgumentNullException(nameof(source));
@@ -131,13 +133,14 @@ namespace SixLabors.ImageSharp.Advanced
         /// Certain Image Processors may invalidate the returned <see cref="IMemoryGroup{T}"/> and all it's buffers,
         /// therefore it's not recommended to mutate the image while holding a reference to it's <see cref="IMemoryGroup{T}"/>.
         /// </remarks>
+        /// <exception cref="ArgumentNullException">Thrown when the <paramref name="source"/> in <see langword="null"/>.</exception>
         public static IMemoryGroup<TPixel> GetPixelMemoryGroup<TPixel>(this Image<TPixel> source)
             where TPixel : unmanaged, IPixel<TPixel>
             => source?.Frames.RootFrame.GetPixelMemoryGroup() ?? throw new ArgumentNullException(nameof(source));
 
         /// <summary>
         /// Gets the representation of the pixels as a <see cref="Span{T}"/> of contiguous memory
-        /// at row <paramref name="rowIndex"/> beginning from the the first pixel on that row.
+        /// at row <paramref name="rowIndex"/> beginning from the first pixel on that row.
         /// </summary>
         /// <typeparam name="TPixel">The type of the pixel.</typeparam>
         /// <param name="source">The source.</param>
@@ -154,8 +157,8 @@ namespace SixLabors.ImageSharp.Advanced
         }
 
         /// <summary>
-        /// Gets the representation of the pixels as <see cref="Span{T}"/> of of contiguous memory
-        /// at row <paramref name="rowIndex"/> beginning from the the first pixel on that row.
+        /// Gets the representation of the pixels as <see cref="Span{T}"/> of contiguous memory
+        /// at row <paramref name="rowIndex"/> beginning from the first pixel on that row.
         /// </summary>
         /// <typeparam name="TPixel">The type of the pixel.</typeparam>
         /// <param name="source">The source.</param>

src/ImageSharp/Advanced/PreserveAttribute.cs

@@ -1,6 +1,8 @@
 // Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
+using System;
+
 namespace SixLabors.ImageSharp.Advanced
 {
     /// <summary>
@@ -8,7 +10,8 @@ namespace SixLabors.ImageSharp.Advanced
     /// The only thing that matters is the class name.
     /// There is no need to use or inherit from the PreserveAttribute class in each environment.
     /// </summary>
-    internal sealed class PreserveAttribute : System.Attribute
+    [AttributeUsage(AttributeTargets.Method)]
+    internal sealed class PreserveAttribute : Attribute
     {
     }
 }

src/ImageSharp/Color/Color.cs

@@ -151,7 +151,7 @@ namespace SixLabors.ImageSharp
         [MethodImpl(InliningOptions.ShortMethod)]
         public static Color ParseHex(string hex)
         {
-            var rgba = Rgba32.ParseHex(hex);
+            Rgba32 rgba = Rgba32.ParseHex(hex);
 
             return new Color(rgba);
         }
@@ -193,6 +193,7 @@ namespace SixLabors.ImageSharp
         /// <returns>
         /// The <see cref="Color"/>.
         /// </returns>
+        /// <exception cref="ArgumentException">Input string is not in the correct format.</exception>
         public static Color Parse(string input)
         {
             Guard.NotNull(input, nameof(input));
@@ -241,7 +242,7 @@ namespace SixLabors.ImageSharp
         /// <returns>The color having it's alpha channel altered.</returns>
         public Color WithAlpha(float alpha)
         {
-            var v = (Vector4)this;
+            Vector4 v = (Vector4)this;
             v.W = alpha;
             return new Color(v);
         }
@@ -286,14 +287,10 @@ namespace SixLabors.ImageSharp
         /// Bulk converts a span of <see cref="Color"/> to a span of a specified <typeparamref name="TPixel"/> type.
         /// </summary>
         /// <typeparam name="TPixel">The pixel type to convert to.</typeparam>
-        /// <param name="configuration">The configuration.</param>
         /// <param name="source">The source color span.</param>
         /// <param name="destination">The destination pixel span.</param>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public static void ToPixel<TPixel>(
-            Configuration configuration,
-            ReadOnlySpan<Color> source,
-            Span<TPixel> destination)
+        public static void ToPixel<TPixel>(ReadOnlySpan<Color> source, Span<TPixel> destination)
             where TPixel : unmanaged, IPixel<TPixel>
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));

src/ImageSharp/ColorSpaces/CieLab.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -19,29 +19,6 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// </summary>
         public static readonly CieXyz DefaultWhitePoint = Illuminants.D50;
 
-        /// <summary>
-        /// Gets the lightness dimension.
-        /// <remarks>A value usually ranging between 0 (black), 100 (diffuse white) or higher (specular white).</remarks>
-        /// </summary>
-        public readonly float L;
-
-        /// <summary>
-        /// Gets the a color component.
-        /// <remarks>A value usually ranging from -100 to 100. Negative is green, positive magenta.</remarks>
-        /// </summary>
-        public readonly float A;
-
-        /// <summary>
-        /// Gets the b color component.
-        /// <remarks>A value usually ranging from -100 to 100. Negative is blue, positive is yellow</remarks>
-        /// </summary>
-        public readonly float B;
-
-        /// <summary>
-        /// Gets the reference white point of this color
-        /// </summary>
-        public readonly CieXyz WhitePoint;
-
         /// <summary>
         /// Initializes a new instance of the <see cref="CieLab"/> struct.
         /// </summary>
@@ -95,6 +72,29 @@ namespace SixLabors.ImageSharp.ColorSpaces
             this.WhitePoint = whitePoint;
         }
 
+        /// <summary>
+        /// Gets the lightness dimension.
+        /// <remarks>A value usually ranging between 0 (black), 100 (diffuse white) or higher (specular white).</remarks>
+        /// </summary>
+        public readonly float L { get; }
+
+        /// <summary>
+        /// Gets the a color component.
+        /// <remarks>A value usually ranging from -100 to 100. Negative is green, positive magenta.</remarks>
+        /// </summary>
+        public readonly float A { get; }
+
+        /// <summary>
+        /// Gets the b color component.
+        /// <remarks>A value usually ranging from -100 to 100. Negative is blue, positive is yellow</remarks>
+        /// </summary>
+        public readonly float B { get; }
+
+        /// <summary>
+        /// Gets the reference white point of this color
+        /// </summary>
+        public readonly CieXyz WhitePoint { get; }
+
         /// <summary>
         /// Compares two <see cref="CieLab"/> objects for equality.
         /// </summary>
@@ -128,12 +128,10 @@ namespace SixLabors.ImageSharp.ColorSpaces
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public bool Equals(CieLab other)
-        {
-            return this.L.Equals(other.L)
-                && this.A.Equals(other.A)
-                && this.B.Equals(other.B)
-                && this.WhitePoint.Equals(other.WhitePoint);
-        }
+        public bool Equals(CieLab other) =>
+            this.L.Equals(other.L)
+            && this.A.Equals(other.A)
+            && this.B.Equals(other.B)
+            && this.WhitePoint.Equals(other.WhitePoint);
     }
 }

src/ImageSharp/ColorSpaces/CieLch.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -19,31 +19,8 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// </summary>
         public static readonly CieXyz DefaultWhitePoint = Illuminants.D50;
 
-        private static readonly Vector3 Min = new Vector3(0, -200, 0);
-        private static readonly Vector3 Max = new Vector3(100, 200, 360);
-
-        /// <summary>
-        /// Gets the lightness dimension.
-        /// <remarks>A value ranging between 0 (black), 100 (diffuse white) or higher (specular white).</remarks>
-        /// </summary>
-        public readonly float L;
-
-        /// <summary>
-        /// Gets the a chroma component.
-        /// <remarks>A value ranging from 0 to 200.</remarks>
-        /// </summary>
-        public readonly float C;
-
-        /// <summary>
-        /// Gets the h° hue component in degrees.
-        /// <remarks>A value ranging from 0 to 360.</remarks>
-        /// </summary>
-        public readonly float H;
-
-        /// <summary>
-        /// Gets the reference white point of this color
-        /// </summary>
-        public readonly CieXyz WhitePoint;
+        private static readonly Vector3 Min = new(0, -200, 0);
+        private static readonly Vector3 Max = new(100, 200, 360);
 
         /// <summary>
         /// Initializes a new instance of the <see cref="CieLch"/> struct.
@@ -97,6 +74,29 @@ namespace SixLabors.ImageSharp.ColorSpaces
             this.WhitePoint = whitePoint;
         }
 
+        /// <summary>
+        /// Gets the lightness dimension.
+        /// <remarks>A value ranging between 0 (black), 100 (diffuse white) or higher (specular white).</remarks>
+        /// </summary>
+        public readonly float L { get; }
+
+        /// <summary>
+        /// Gets the a chroma component.
+        /// <remarks>A value ranging from 0 to 200.</remarks>
+        /// </summary>
+        public readonly float C { get; }
+
+        /// <summary>
+        /// Gets the h° hue component in degrees.
+        /// <remarks>A value ranging from 0 to 360.</remarks>
+        /// </summary>
+        public readonly float H { get; }
+
+        /// <summary>
+        /// Gets the reference white point of this color
+        /// </summary>
+        public readonly CieXyz WhitePoint { get; }
+
         /// <summary>
         /// Compares two <see cref="CieLch"/> objects for equality.
         /// </summary>
@@ -121,9 +121,7 @@ namespace SixLabors.ImageSharp.ColorSpaces
 
         /// <inheritdoc/>
         public override int GetHashCode()
-        {
-            return HashCode.Combine(this.L, this.C, this.H, this.WhitePoint);
-        }
+            => HashCode.Combine(this.L, this.C, this.H, this.WhitePoint);
 
         /// <inheritdoc/>
         public override string ToString() => FormattableString.Invariant($"CieLch({this.L:#0.##}, {this.C:#0.##}, {this.H:#0.##})");
@@ -135,12 +133,10 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
         public bool Equals(CieLch other)
-        {
-            return this.L.Equals(other.L)
-                && this.C.Equals(other.C)
-                && this.H.Equals(other.H)
-                && this.WhitePoint.Equals(other.WhitePoint);
-        }
+            => this.L.Equals(other.L)
+            && this.C.Equals(other.C)
+            && this.H.Equals(other.H)
+            && this.WhitePoint.Equals(other.WhitePoint);
 
         /// <summary>
         /// Computes the saturation of the color (chroma normalized by lightness)

src/ImageSharp/ColorSpaces/CieLchuv.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -13,8 +13,8 @@ namespace SixLabors.ImageSharp.ColorSpaces
     /// </summary>
     public readonly struct CieLchuv : IEquatable<CieLchuv>
     {
-        private static readonly Vector3 Min = new Vector3(0, -200, 0);
-        private static readonly Vector3 Max = new Vector3(100, 200, 360);
+        private static readonly Vector3 Min = new(0, -200, 0);
+        private static readonly Vector3 Max = new(100, 200, 360);
 
         /// <summary>
         /// D50 standard illuminant.
@@ -22,29 +22,6 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// </summary>
         public static readonly CieXyz DefaultWhitePoint = Illuminants.D65;
 
-        /// <summary>
-        /// Gets the lightness dimension.
-        /// <remarks>A value ranging between 0 (black), 100 (diffuse white) or higher (specular white).</remarks>
-        /// </summary>
-        public readonly float L;
-
-        /// <summary>
-        /// Gets the a chroma component.
-        /// <remarks>A value ranging from 0 to 200.</remarks>
-        /// </summary>
-        public readonly float C;
-
-        /// <summary>
-        /// Gets the h° hue component in degrees.
-        /// <remarks>A value ranging from 0 to 360.</remarks>
-        /// </summary>
-        public readonly float H;
-
-        /// <summary>
-        /// Gets the reference white point of this color
-        /// </summary>
-        public readonly CieXyz WhitePoint;
-
         /// <summary>
         /// Initializes a new instance of the <see cref="CieLchuv"/> struct.
         /// </summary>
@@ -98,6 +75,29 @@ namespace SixLabors.ImageSharp.ColorSpaces
             this.WhitePoint = whitePoint;
         }
 
+        /// <summary>
+        /// Gets the lightness dimension.
+        /// <remarks>A value ranging between 0 (black), 100 (diffuse white) or higher (specular white).</remarks>
+        /// </summary>
+        public readonly float L { get; }
+
+        /// <summary>
+        /// Gets the a chroma component.
+        /// <remarks>A value ranging from 0 to 200.</remarks>
+        /// </summary>
+        public readonly float C { get; }
+
+        /// <summary>
+        /// Gets the h° hue component in degrees.
+        /// <remarks>A value ranging from 0 to 360.</remarks>
+        /// </summary>
+        public readonly float H { get; }
+
+        /// <summary>
+        /// Gets the reference white point of this color
+        /// </summary>
+        public readonly CieXyz WhitePoint { get; }
+
         /// <summary>
         /// Compares two <see cref="CieLchuv"/> objects for equality.
         /// </summary>
@@ -130,12 +130,10 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
         public bool Equals(CieLchuv other)
-        {
-            return this.L.Equals(other.L)
-                && this.C.Equals(other.C)
-                && this.H.Equals(other.H)
-                && this.WhitePoint.Equals(other.WhitePoint);
-        }
+            => this.L.Equals(other.L)
+            && this.C.Equals(other.C)
+            && this.H.Equals(other.H)
+            && this.WhitePoint.Equals(other.WhitePoint);
 
         /// <summary>
         /// Computes the saturation of the color (chroma normalized by lightness)

src/ImageSharp/ColorSpaces/CieLuv.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -21,29 +21,6 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// </summary>
         public static readonly CieXyz DefaultWhitePoint = Illuminants.D65;
 
-        /// <summary>
-        /// Gets the lightness dimension
-        /// <remarks>A value usually ranging between 0 and 100.</remarks>
-        /// </summary>
-        public readonly float L;
-
-        /// <summary>
-        /// Gets the blue-yellow chromaticity coordinate of the given whitepoint.
-        /// <remarks>A value usually ranging between -100 and 100.</remarks>
-        /// </summary>
-        public readonly float U;
-
-        /// <summary>
-        /// Gets the red-green chromaticity coordinate of the given whitepoint.
-        /// <remarks>A value usually ranging between -100 and 100.</remarks>
-        /// </summary>
-        public readonly float V;
-
-        /// <summary>
-        /// Gets the reference white point of this color
-        /// </summary>
-        public readonly CieXyz WhitePoint;
-
         /// <summary>
         /// Initializes a new instance of the <see cref="CieLuv"/> struct.
         /// </summary>
@@ -96,6 +73,29 @@ namespace SixLabors.ImageSharp.ColorSpaces
             this.WhitePoint = whitePoint;
         }
 
+        /// <summary>
+        /// Gets the lightness dimension
+        /// <remarks>A value usually ranging between 0 and 100.</remarks>
+        /// </summary>
+        public readonly float L { get; }
+
+        /// <summary>
+        /// Gets the blue-yellow chromaticity coordinate of the given whitepoint.
+        /// <remarks>A value usually ranging between -100 and 100.</remarks>
+        /// </summary>
+        public readonly float U { get; }
+
+        /// <summary>
+        /// Gets the red-green chromaticity coordinate of the given whitepoint.
+        /// <remarks>A value usually ranging between -100 and 100.</remarks>
+        /// </summary>
+        public readonly float V { get; }
+
+        /// <summary>
+        /// Gets the reference white point of this color
+        /// </summary>
+        public readonly CieXyz WhitePoint { get; }
+
         /// <summary>
         /// Compares two <see cref="CieLuv"/> objects for equality.
         /// </summary>
@@ -130,11 +130,9 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
         public bool Equals(CieLuv other)
-        {
-            return this.L.Equals(other.L)
-                && this.U.Equals(other.U)
-                && this.V.Equals(other.V)
-                && this.WhitePoint.Equals(other.WhitePoint);
-        }
+            => this.L.Equals(other.L)
+            && this.U.Equals(other.U)
+            && this.V.Equals(other.V)
+            && this.WhitePoint.Equals(other.WhitePoint);
     }
 }

src/ImageSharp/ColorSpaces/CieXyy.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -13,24 +13,6 @@ namespace SixLabors.ImageSharp.ColorSpaces
     /// </summary>
     public readonly struct CieXyy : IEquatable<CieXyy>
     {
-        /// <summary>
-        /// Gets the X chrominance component.
-        /// <remarks>A value usually ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float X;
-
-        /// <summary>
-        /// Gets the Y chrominance component.
-        /// <remarks>A value usually ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float Y;
-
-        /// <summary>
-        /// Gets the Y luminance component.
-        /// <remarks>A value usually ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float Yl;
-
         /// <summary>
         /// Initializes a new instance of the <see cref="CieXyy"/> struct.
         /// </summary>
@@ -60,6 +42,24 @@ namespace SixLabors.ImageSharp.ColorSpaces
             this.Yl = vector.Z;
         }
 
+        /// <summary>
+        /// Gets the X chrominance component.
+        /// <remarks>A value usually ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float X { get; }
+
+        /// <summary>
+        /// Gets the Y chrominance component.
+        /// <remarks>A value usually ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float Y { get; }
+
+        /// <summary>
+        /// Gets the Y luminance component.
+        /// <remarks>A value usually ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float Yl { get; }
+
         /// <summary>
         /// Compares two <see cref="CieXyy"/> objects for equality.
         /// </summary>
@@ -94,10 +94,8 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
         public bool Equals(CieXyy other)
-        {
-            return this.X.Equals(other.X)
-                && this.Y.Equals(other.Y)
-                && this.Yl.Equals(other.Yl);
-        }
+            => this.X.Equals(other.X)
+            && this.Y.Equals(other.Y)
+            && this.Yl.Equals(other.Yl);
     }
 }

src/ImageSharp/ColorSpaces/CieXyz.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -13,24 +13,6 @@ namespace SixLabors.ImageSharp.ColorSpaces
     /// </summary>
     public readonly struct CieXyz : IEquatable<CieXyz>
     {
-        /// <summary>
-        /// Gets the X component. A mix (a linear combination) of cone response curves chosen to be nonnegative.
-        /// <remarks>A value usually ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float X;
-
-        /// <summary>
-        /// Gets the Y luminance component.
-        /// <remarks>A value usually ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float Y;
-
-        /// <summary>
-        /// Gets the Z component. Quasi-equal to blue stimulation, or the S cone response.
-        /// <remarks>A value usually ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float Z;
-
         /// <summary>
         /// Initializes a new instance of the <see cref="CieXyz"/> struct.
         /// </summary>
@@ -56,6 +38,24 @@ namespace SixLabors.ImageSharp.ColorSpaces
             this.Z = vector.Z;
         }
 
+        /// <summary>
+        /// Gets the X component. A mix (a linear combination) of cone response curves chosen to be nonnegative.
+        /// <remarks>A value usually ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float X { get; }
+
+        /// <summary>
+        /// Gets the Y luminance component.
+        /// <remarks>A value usually ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float Y { get; }
+
+        /// <summary>
+        /// Gets the Z component. Quasi-equal to blue stimulation, or the S cone response.
+        /// <remarks>A value usually ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float Z { get; }
+
         /// <summary>
         /// Compares two <see cref="CieXyz"/> objects for equality.
         /// </summary>
@@ -83,7 +83,7 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// </summary>
         /// <returns>The <see cref="Vector3"/>.</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Vector3 ToVector3() => new Vector3(this.X, this.Y, this.Z);
+        public Vector3 ToVector3() => new(this.X, this.Y, this.Z);
 
         /// <inheritdoc/>
         public override int GetHashCode() => HashCode.Combine(this.X, this.Y, this.Z);
@@ -97,10 +97,8 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
         public bool Equals(CieXyz other)
-        {
-            return this.X.Equals(other.X)
-                && this.Y.Equals(other.Y)
-                && this.Z.Equals(other.Z);
-        }
+            => this.X.Equals(other.X)
+            && this.Y.Equals(other.Y)
+            && this.Z.Equals(other.Z);
     }
 }

src/ImageSharp/ColorSpaces/Cmyk.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -15,30 +15,6 @@ namespace SixLabors.ImageSharp.ColorSpaces
         private static readonly Vector4 Min = Vector4.Zero;
         private static readonly Vector4 Max = Vector4.One;
 
-        /// <summary>
-        /// Gets the cyan color component.
-        /// <remarks>A value ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float C;
-
-        /// <summary>
-        /// Gets the magenta color component.
-        /// <remarks>A value ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float M;
-
-        /// <summary>
-        /// Gets the yellow color component.
-        /// <remarks>A value ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float Y;
-
-        /// <summary>
-        /// Gets the keyline black color component.
-        /// <remarks>A value ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float K;
-
         /// <summary>
         /// Initializes a new instance of the <see cref="Cmyk"/> struct.
         /// </summary>
@@ -66,6 +42,30 @@ namespace SixLabors.ImageSharp.ColorSpaces
             this.K = vector.W;
         }
 
+        /// <summary>
+        /// Gets the cyan color component.
+        /// <remarks>A value ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float C { get; }
+
+        /// <summary>
+        /// Gets the magenta color component.
+        /// <remarks>A value ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float M { get; }
+
+        /// <summary>
+        /// Gets the yellow color component.
+        /// <remarks>A value ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float Y { get; }
+
+        /// <summary>
+        /// Gets the keyline black color component.
+        /// <remarks>A value ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float K { get; }
+
         /// <summary>
         /// Compares two <see cref="Cmyk"/> objects for equality.
         /// </summary>
@@ -101,11 +101,9 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
         public bool Equals(Cmyk other)
-        {
-            return this.C.Equals(other.C)
-                && this.M.Equals(other.M)
-                && this.Y.Equals(other.Y)
-                && this.K.Equals(other.K);
-        }
+            => this.C.Equals(other.C)
+            && this.M.Equals(other.M)
+            && this.Y.Equals(other.Y)
+            && this.K.Equals(other.K);
     }
 }

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.Adapt.cs

@@ -150,9 +150,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
                 return color;
             }
 
-            var linearInput = this.ToLinearRgb(color);
+            var linearInput = ToLinearRgb(color);
             LinearRgb linearOutput = this.Adapt(linearInput);
-            return this.ToRgb(linearOutput);
+            return ToRgb(linearOutput);
         }
     }
 }

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.CieLab.cs

@@ -12,11 +12,6 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// </content>
     public partial class ColorSpaceConverter
     {
-        /// <summary>
-        /// The converter for converting between CieLch to CieLab.
-        /// </summary>
-        private static readonly CieLchToCieLabConverter CieLchToCieLabConverter = new CieLchToCieLabConverter();
-
         /// <summary>
         /// Converts a <see cref="CieLch"/> into a <see cref="CieLab"/>.
         /// </summary>
@@ -58,7 +53,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLab"/></returns>
         public CieLab ToCieLab(in CieLchuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLab(xyzColor);
         }
@@ -91,7 +86,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLab"/></returns>
         public CieLab ToCieLab(in CieLuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLab(xyzColor);
         }
@@ -124,7 +119,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLab"/></returns>
         public CieLab ToCieLab(in CieXyy color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = ToCieXyz(color);
 
             return this.ToCieLab(xyzColor);
         }
@@ -190,7 +185,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLab"/></returns>
         public CieLab ToCieLab(in Cmyk color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToCieLab(xyzColor);
         }
 
@@ -222,7 +217,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLab"/></returns>
         public CieLab ToCieLab(in Hsl color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLab(xyzColor);
         }
@@ -255,7 +250,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLab"/></returns>
         public CieLab ToCieLab(in Hsv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToCieLab(xyzColor);
         }
 
@@ -287,7 +282,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLab"/></returns>
         public CieLab ToCieLab(in HunterLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLab(xyzColor);
         }
@@ -320,7 +315,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLab"/></returns>
         public CieLab ToCieLab(in Lms color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLab(xyzColor);
         }
@@ -353,7 +348,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLab"/></returns>
         public CieLab ToCieLab(in LinearRgb color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLab(xyzColor);
         }
@@ -386,7 +381,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLab"/></returns>
         public CieLab ToCieLab(in Rgb color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLab(xyzColor);
         }
@@ -419,7 +414,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLab"/></returns>
         public CieLab ToCieLab(in YCbCr color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLab(xyzColor);
         }

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.CieLch.cs

@@ -12,11 +12,6 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// </content>
     public partial class ColorSpaceConverter
     {
-        /// <summary>
-        /// The converter for converting between CieLab to CieLch.
-        /// </summary>
-        private static readonly CieLabToCieLchConverter CieLabToCieLchConverter = new CieLabToCieLchConverter();
-
         /// <summary>
         /// Converts a <see cref="CieLab"/> into a <see cref="CieLch"/>
         /// </summary>
@@ -123,7 +118,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLch"/></returns>
         public CieLch ToCieLch(in CieXyy color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            var xyzColor = ToCieXyz(color);
 
             return this.ToCieLch(xyzColor);
         }

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.CieLchuv.cs

@@ -12,11 +12,6 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// </content>
     public partial class ColorSpaceConverter
     {
-        /// <summary>
-        /// The converter for converting between CieLab to CieLchuv.
-        /// </summary>
-        private static readonly CieLuvToCieLchuvConverter CieLuvToCieLchuvConverter = new CieLuvToCieLchuvConverter();
-
         /// <summary>
         /// Converts a <see cref="CieLab"/> into a <see cref="CieLchuv"/>
         /// </summary>
@@ -24,7 +19,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLchuv"/></returns>
         public CieLchuv ToCieLchuv(in CieLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLchuv(xyzColor);
         }
@@ -57,7 +52,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLchuv"/></returns>
         public CieLchuv ToCieLchuv(in CieLch color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLchuv(xyzColor);
         }
@@ -123,7 +118,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLchuv"/></returns>
         public CieLchuv ToCieLchuv(in CieXyy color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = ToCieXyz(color);
 
             return this.ToCieLchuv(xyzColor);
         }
@@ -156,7 +151,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLchuv"/></returns>
         public CieLchuv ToCieLchuv(in CieXyz color)
         {
-            var luvColor = this.ToCieLuv(color);
+            CieLuv luvColor = this.ToCieLuv(color);
 
             return this.ToCieLchuv(luvColor);
         }
@@ -189,7 +184,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLchuv"/></returns>
         public CieLchuv ToCieLchuv(in Cmyk color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLchuv(xyzColor);
         }
@@ -222,7 +217,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLchuv"/></returns>
         public CieLchuv ToCieLchuv(in Hsl color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLchuv(xyzColor);
         }
@@ -255,7 +250,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLchuv"/></returns>
         public CieLchuv ToCieLchuv(in Hsv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLchuv(xyzColor);
         }
@@ -288,7 +283,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLchuv"/></returns>
         public CieLchuv ToCieLchuv(in HunterLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLchuv(xyzColor);
         }
@@ -321,7 +316,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLchuv"/></returns>
         public CieLchuv ToCieLchuv(in LinearRgb color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLchuv(xyzColor);
         }
@@ -354,7 +349,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLchuv"/></returns>
         public CieLchuv ToCieLchuv(in Lms color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLchuv(xyzColor);
         }
@@ -387,7 +382,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLchuv"/></returns>
         public CieLchuv ToCieLchuv(in Rgb color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCieLchuv(xyzColor);
         }
@@ -420,7 +415,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLchuv"/></returns>
         public CieLchuv ToCieLchuv(in YCbCr color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToCieLchuv(xyzColor);
         }
 

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.CieLuv.cs

@@ -12,8 +12,6 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// </content>
     public partial class ColorSpaceConverter
     {
-        private static readonly CieLchuvToCieLuvConverter CieLchuvToCieLuvConverter = new CieLchuvToCieLuvConverter();
-
         /// <summary>
         /// Converts a <see cref="CieLab"/> into a <see cref="CieLuv"/>.
         /// </summary>
@@ -21,7 +19,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLuv"/></returns>
         public CieLuv ToCieLuv(in CieLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToCieLuv(xyzColor);
         }
 
@@ -53,7 +51,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLuv"/></returns>
         public CieLuv ToCieLuv(in CieLch color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToCieLuv(xyzColor);
         }
 
@@ -120,7 +118,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLuv"/></returns>
         public CieLuv ToCieLuv(in CieXyy color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = ToCieXyz(color);
             return this.ToCieLuv(xyzColor);
         }
 
@@ -187,7 +185,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLuv"/></returns>
         public CieLuv ToCieLuv(in Cmyk color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToCieLuv(xyzColor);
         }
 
@@ -219,7 +217,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLuv"/></returns>
         public CieLuv ToCieLuv(in Hsl color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToCieLuv(xyzColor);
         }
 
@@ -251,7 +249,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLuv"/></returns>
         public CieLuv ToCieLuv(in Hsv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToCieLuv(xyzColor);
         }
 
@@ -283,7 +281,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLuv"/></returns>
         public CieLuv ToCieLuv(in HunterLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToCieLuv(xyzColor);
         }
 
@@ -315,7 +313,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLuv"/></returns>
         public CieLuv ToCieLuv(in Lms color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToCieLuv(xyzColor);
         }
 
@@ -347,7 +345,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLuv"/></returns>
         public CieLuv ToCieLuv(in LinearRgb color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToCieLuv(xyzColor);
         }
 
@@ -379,7 +377,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLuv"/></returns>
         public CieLuv ToCieLuv(in Rgb color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToCieLuv(xyzColor);
         }
 
@@ -411,7 +409,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieLuv"/></returns>
         public CieLuv ToCieLuv(in YCbCr color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToCieLuv(xyzColor);
         }
 

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.CieXyy.cs

@@ -12,8 +12,6 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// </content>
     public partial class ColorSpaceConverter
     {
-        private static readonly CieXyzAndCieXyyConverter CieXyzAndCieXyyConverter = new CieXyzAndCieXyyConverter();
-
         /// <summary>
         /// Converts a <see cref="CieLab"/> into a <see cref="CieXyy"/>
         /// </summary>
@@ -21,9 +19,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyy"/></returns>
         public CieXyy ToCieXyy(in CieLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
-            return this.ToCieXyy(xyzColor);
+            return ToCieXyy(xyzColor);
         }
 
         /// <summary>
@@ -54,9 +52,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyy"/></returns>
         public CieXyy ToCieXyy(in CieLch color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
-            return this.ToCieXyy(xyzColor);
+            return ToCieXyy(xyzColor);
         }
 
         /// <summary>
@@ -87,9 +85,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyy"/></returns>
         public CieXyy ToCieXyy(in CieLchuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
-            return this.ToCieXyy(xyzColor);
+            return ToCieXyy(xyzColor);
         }
 
         /// <summary>
@@ -120,9 +118,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyy"/></returns>
         public CieXyy ToCieXyy(in CieLuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
-            return this.ToCieXyy(xyzColor);
+            return ToCieXyy(xyzColor);
         }
 
         /// <summary>
@@ -151,14 +149,14 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="CieXyy"/></returns>
-        public CieXyy ToCieXyy(in CieXyz color) => CieXyzAndCieXyyConverter.Convert(color);
+        public static CieXyy ToCieXyy(in CieXyz color) => CieXyzAndCieXyyConverter.Convert(color);
 
         /// <summary>
         /// Performs the bulk conversion from <see cref="CieXyz"/> into <see cref="CieXyy"/>
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<CieXyz> source, Span<CieXyy> destination)
+        public static void Convert(ReadOnlySpan<CieXyz> source, Span<CieXyy> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -170,7 +168,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref CieXyz sp = ref Unsafe.Add(ref sourceRef, i);
                 ref CieXyy dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToCieXyy(sp);
+                dp = ToCieXyy(sp);
             }
         }
 
@@ -181,9 +179,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyy"/></returns>
         public CieXyy ToCieXyy(in Cmyk color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
-            return this.ToCieXyy(xyzColor);
+            return ToCieXyy(xyzColor);
         }
 
         /// <summary>
@@ -214,9 +212,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyy"/></returns>
         public CieXyy ToCieXyy(Hsl color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
-            return this.ToCieXyy(xyzColor);
+            return ToCieXyy(xyzColor);
         }
 
         /// <summary>
@@ -247,9 +245,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyy"/></returns>
         public CieXyy ToCieXyy(in Hsv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
-            return this.ToCieXyy(xyzColor);
+            return ToCieXyy(xyzColor);
         }
 
         /// <summary>
@@ -280,9 +278,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyy"/></returns>
         public CieXyy ToCieXyy(in HunterLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
-            return this.ToCieXyy(xyzColor);
+            return ToCieXyy(xyzColor);
         }
 
         /// <summary>
@@ -313,9 +311,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyy"/></returns>
         public CieXyy ToCieXyy(in LinearRgb color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
-            return this.ToCieXyy(xyzColor);
+            return ToCieXyy(xyzColor);
         }
 
         /// <summary>
@@ -346,9 +344,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyy"/></returns>
         public CieXyy ToCieXyy(in Lms color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
-            return this.ToCieXyy(xyzColor);
+            return ToCieXyy(xyzColor);
         }
 
         /// <summary>
@@ -379,9 +377,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyy"/></returns>
         public CieXyy ToCieXyy(in Rgb color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
-            return this.ToCieXyy(xyzColor);
+            return ToCieXyy(xyzColor);
         }
 
         /// <summary>
@@ -412,9 +410,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyy"/></returns>
         public CieXyy ToCieXyy(in YCbCr color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
-            return this.ToCieXyy(xyzColor);
+            return ToCieXyy(xyzColor);
         }
 
         /// <summary>

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.CieXyz.cs

@@ -12,12 +12,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// </content>
     public partial class ColorSpaceConverter
     {
-        private static readonly CieLabToCieXyzConverter CieLabToCieXyzConverter = new CieLabToCieXyzConverter();
-
-        private static readonly CieLuvToCieXyzConverter CieLuvToCieXyzConverter = new CieLuvToCieXyzConverter();
-
-        private static readonly HunterLabToCieXyzConverter
-            HunterLabToCieXyzConverter = new HunterLabToCieXyzConverter();
+        private static readonly HunterLabToCieXyzConverter HunterLabToCieXyzConverter = new();
 
         private LinearRgbToCieXyzConverter linearRgbToCieXyzConverter;
 
@@ -166,18 +161,17 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="CieXyz"/></returns>
-        public CieXyz ToCieXyz(in CieXyy color)
-        {
+        public static CieXyz ToCieXyz(in CieXyy color)
+
             // Conversion
-            return CieXyzAndCieXyyConverter.Convert(color);
-        }
+            => CieXyzAndCieXyyConverter.Convert(color);
 
         /// <summary>
         /// Performs the bulk conversion from <see cref="CieXyy"/> into <see cref="CieXyz"/>.
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<CieXyy> source, Span<CieXyz> destination)
+        public static void Convert(ReadOnlySpan<CieXyy> source, Span<CieXyz> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -189,7 +183,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref CieXyy sp = ref Unsafe.Add(ref sourceRef, i);
                 ref CieXyz dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToCieXyz(sp);
+                dp = ToCieXyz(sp);
             }
         }
 
@@ -200,7 +194,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyz"/></returns>
         public CieXyz ToCieXyz(in Cmyk color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return this.ToCieXyz(rgb);
         }
@@ -233,7 +227,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyz"/></returns>
         public CieXyz ToCieXyz(in Hsl color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return this.ToCieXyz(rgb);
         }
@@ -267,7 +261,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         public CieXyz ToCieXyz(in Hsv color)
         {
             // Conversion
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return this.ToCieXyz(rgb);
         }
@@ -367,9 +361,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="CieXyz"/></returns>
         public CieXyz ToCieXyz(in Lms color)
-        {
-            return this.cieXyzAndLmsConverter.Convert(color);
-        }
+            => this.cieXyzAndLmsConverter.Convert(color);
 
         /// <summary>
         /// Performs the bulk conversion from <see cref="Lms"/> into <see cref="CieXyz"/>.
@@ -432,7 +424,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="CieXyz"/></returns>
         public CieXyz ToCieXyz(in YCbCr color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = this.ToRgb(color);
 
             return this.ToCieXyz(rgb);
         }

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.Cmyk.cs

@@ -12,8 +12,6 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// </content>
     public partial class ColorSpaceConverter
     {
-        private static readonly CmykAndRgbConverter CmykAndRgbConverter = new CmykAndRgbConverter();
-
         /// <summary>
         /// Converts a <see cref="CieLab"/> into a <see cref="Cmyk"/>.
         /// </summary>
@@ -21,7 +19,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Cmyk"/></returns>
         public Cmyk ToCmyk(in CieLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCmyk(xyzColor);
         }
@@ -54,7 +52,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Cmyk"/></returns>
         public Cmyk ToCmyk(in CieLch color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCmyk(xyzColor);
         }
@@ -87,7 +85,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Cmyk"/></returns>
         public Cmyk ToCmyk(in CieLchuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCmyk(xyzColor);
         }
@@ -120,7 +118,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Cmyk"/></returns>
         public Cmyk ToCmyk(in CieLuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCmyk(xyzColor);
         }
@@ -153,7 +151,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Cmyk"/></returns>
         public Cmyk ToCmyk(in CieXyy color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = ToCieXyz(color);
 
             return this.ToCmyk(xyzColor);
         }
@@ -186,7 +184,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Cmyk"/></returns>
         public Cmyk ToCmyk(in CieXyz color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = this.ToRgb(color);
 
             return CmykAndRgbConverter.Convert(rgb);
         }
@@ -217,9 +215,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Cmyk"/></returns>
-        public Cmyk ToCmyk(in Hsl color)
+        public static Cmyk ToCmyk(in Hsl color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return CmykAndRgbConverter.Convert(rgb);
         }
@@ -229,7 +227,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Hsl> source, Span<Cmyk> destination)
+        public static void Convert(ReadOnlySpan<Hsl> source, Span<Cmyk> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -241,7 +239,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Hsl sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Cmyk dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToCmyk(sp);
+                dp = ToCmyk(sp);
             }
         }
 
@@ -250,9 +248,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Cmyk"/></returns>
-        public Cmyk ToCmyk(in Hsv color)
+        public static Cmyk ToCmyk(in Hsv color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return CmykAndRgbConverter.Convert(rgb);
         }
@@ -262,7 +260,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Hsv> source, Span<Cmyk> destination)
+        public static void Convert(ReadOnlySpan<Hsv> source, Span<Cmyk> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -274,7 +272,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Hsv sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Cmyk dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToCmyk(sp);
+                dp = ToCmyk(sp);
             }
         }
 
@@ -285,7 +283,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Cmyk"/></returns>
         public Cmyk ToCmyk(in HunterLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCmyk(xyzColor);
         }
@@ -316,9 +314,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Cmyk"/></returns>
-        public Cmyk ToCmyk(in LinearRgb color)
+        public static Cmyk ToCmyk(in LinearRgb color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return CmykAndRgbConverter.Convert(rgb);
         }
@@ -328,7 +326,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<LinearRgb> source, Span<Cmyk> destination)
+        public static void Convert(ReadOnlySpan<LinearRgb> source, Span<Cmyk> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -340,7 +338,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref LinearRgb sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Cmyk dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToCmyk(sp);
+                dp = ToCmyk(sp);
             }
         }
 
@@ -351,7 +349,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Cmyk"/></returns>
         public Cmyk ToCmyk(in Lms color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToCmyk(xyzColor);
         }
@@ -382,14 +380,14 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Cmyk"/></returns>
-        public Cmyk ToCmyk(in Rgb color) => CmykAndRgbConverter.Convert(color);
+        public static Cmyk ToCmyk(in Rgb color) => CmykAndRgbConverter.Convert(color);
 
         /// <summary>
         /// Performs the bulk conversion from <see cref="Rgb"/> into <see cref="Cmyk"/>
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Rgb> source, Span<Cmyk> destination)
+        public static void Convert(ReadOnlySpan<Rgb> source, Span<Cmyk> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -401,7 +399,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Rgb sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Cmyk dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToCmyk(sp);
+                dp = ToCmyk(sp);
             }
         }
 
@@ -412,7 +410,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Cmyk"/></returns>
         public Cmyk ToCmyk(in YCbCr color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = this.ToRgb(color);
 
             return CmykAndRgbConverter.Convert(rgb);
         }

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.Hsl.cs

@@ -12,8 +12,6 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// </content>
     public partial class ColorSpaceConverter
     {
-        private static readonly HslAndRgbConverter HslAndRgbConverter = new HslAndRgbConverter();
-
         /// <summary>
         /// Converts a <see cref="CieLab"/> into a <see cref="Hsl"/>.
         /// </summary>
@@ -21,7 +19,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsl"/></returns>
         public Hsl ToHsl(in CieLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToHsl(xyzColor);
         }
@@ -54,7 +52,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsl"/></returns>
         public Hsl ToHsl(in CieLch color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToHsl(xyzColor);
         }
@@ -87,7 +85,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsl"/></returns>
         public Hsl ToHsl(in CieLchuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToHsl(xyzColor);
         }
@@ -120,7 +118,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsl"/></returns>
         public Hsl ToHsl(in CieLuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToHsl(xyzColor);
         }
@@ -153,7 +151,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsl"/></returns>
         public Hsl ToHsl(in CieXyy color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = ToCieXyz(color);
 
             return this.ToHsl(xyzColor);
         }
@@ -186,7 +184,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsl"/></returns>
         public Hsl ToHsl(in CieXyz color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = this.ToRgb(color);
 
             return HslAndRgbConverter.Convert(rgb);
         }
@@ -217,9 +215,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Hsl"/></returns>
-        public Hsl ToHsl(in Cmyk color)
+        public static Hsl ToHsl(in Cmyk color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return HslAndRgbConverter.Convert(rgb);
         }
@@ -229,7 +227,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Cmyk> source, Span<Hsl> destination)
+        public static void Convert(ReadOnlySpan<Cmyk> source, Span<Hsl> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -241,7 +239,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Cmyk sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Hsl dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToHsl(sp);
+                dp = ToHsl(sp);
             }
         }
 
@@ -250,9 +248,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Hsl"/></returns>
-        public Hsl ToHsl(in Hsv color)
+        public static Hsl ToHsl(in Hsv color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return HslAndRgbConverter.Convert(rgb);
         }
@@ -262,7 +260,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Hsv> source, Span<Hsl> destination)
+        public static void Convert(ReadOnlySpan<Hsv> source, Span<Hsl> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -274,7 +272,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Hsv sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Hsl dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToHsl(sp);
+                dp = ToHsl(sp);
             }
         }
 
@@ -285,7 +283,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsl"/></returns>
         public Hsl ToHsl(in HunterLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToHsl(xyzColor);
         }
@@ -316,9 +314,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Hsl"/></returns>
-        public Hsl ToHsl(in LinearRgb color)
+        public static Hsl ToHsl(in LinearRgb color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return HslAndRgbConverter.Convert(rgb);
         }
@@ -328,7 +326,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<LinearRgb> source, Span<Hsl> destination)
+        public static void Convert(ReadOnlySpan<LinearRgb> source, Span<Hsl> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -340,7 +338,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref LinearRgb sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Hsl dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToHsl(sp);
+                dp = ToHsl(sp);
             }
         }
 
@@ -351,7 +349,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsl"/></returns>
         public Hsl ToHsl(Lms color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToHsl(xyzColor);
         }
@@ -382,14 +380,14 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Hsl"/></returns>
-        public Hsl ToHsl(in Rgb color) => HslAndRgbConverter.Convert(color);
+        public static Hsl ToHsl(in Rgb color) => HslAndRgbConverter.Convert(color);
 
         /// <summary>
         /// Performs the bulk conversion from <see cref="Rgb"/> into <see cref="Hsl"/>.
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Rgb> source, Span<Hsl> destination)
+        public static void Convert(ReadOnlySpan<Rgb> source, Span<Hsl> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -401,7 +399,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Rgb sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Hsl dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToHsl(sp);
+                dp = ToHsl(sp);
             }
         }
 
@@ -412,7 +410,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsl"/></returns>
         public Hsl ToHsl(in YCbCr color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = this.ToRgb(color);
 
             return HslAndRgbConverter.Convert(rgb);
         }

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.Hsv.cs

@@ -12,8 +12,6 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// </content>
     public partial class ColorSpaceConverter
     {
-        private static readonly HsvAndRgbConverter HsvAndRgbConverter = new HsvAndRgbConverter();
-
         /// <summary>
         /// Converts a <see cref="CieLab"/> into a <see cref="Hsv"/>
         /// </summary>
@@ -21,7 +19,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsv"/></returns>
         public Hsv ToHsv(in CieLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToHsv(xyzColor);
         }
@@ -54,7 +52,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsv"/></returns>
         public Hsv ToHsv(in CieLch color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToHsv(xyzColor);
         }
@@ -87,7 +85,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsv"/></returns>
         public Hsv ToHsv(in CieLchuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToHsv(xyzColor);
         }
@@ -120,7 +118,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsv"/></returns>
         public Hsv ToHsv(in CieLuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToHsv(xyzColor);
         }
@@ -153,7 +151,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsv"/></returns>
         public Hsv ToHsv(in CieXyy color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = ToCieXyz(color);
 
             return this.ToHsv(xyzColor);
         }
@@ -186,7 +184,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsv"/></returns>
         public Hsv ToHsv(in CieXyz color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = this.ToRgb(color);
 
             return HsvAndRgbConverter.Convert(rgb);
         }
@@ -217,9 +215,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Hsv"/></returns>
-        public Hsv ToHsv(in Cmyk color)
+        public static Hsv ToHsv(in Cmyk color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return HsvAndRgbConverter.Convert(rgb);
         }
@@ -229,7 +227,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Cmyk> source, Span<Hsv> destination)
+        public static void Convert(ReadOnlySpan<Cmyk> source, Span<Hsv> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -241,7 +239,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Cmyk sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Hsv dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToHsv(sp);
+                dp = ToHsv(sp);
             }
         }
 
@@ -250,9 +248,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Hsv"/></returns>
-        public Hsv ToHsv(in Hsl color)
+        public static Hsv ToHsv(in Hsl color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return HsvAndRgbConverter.Convert(rgb);
         }
@@ -262,7 +260,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors.</param>
-        public void Convert(ReadOnlySpan<Hsl> source, Span<Hsv> destination)
+        public static void Convert(ReadOnlySpan<Hsl> source, Span<Hsv> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -274,7 +272,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Hsl sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Hsv dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToHsv(sp);
+                dp = ToHsv(sp);
             }
         }
 
@@ -285,7 +283,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsv"/></returns>
         public Hsv ToHsv(in HunterLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToHsv(xyzColor);
         }
@@ -316,9 +314,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Hsv"/></returns>
-        public Hsv ToHsv(in LinearRgb color)
+        public static Hsv ToHsv(in LinearRgb color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return HsvAndRgbConverter.Convert(rgb);
         }
@@ -328,7 +326,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<LinearRgb> source, Span<Hsv> destination)
+        public static void Convert(ReadOnlySpan<LinearRgb> source, Span<Hsv> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -340,7 +338,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref LinearRgb sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Hsv dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToHsv(sp);
+                dp = ToHsv(sp);
             }
         }
 
@@ -351,7 +349,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsv"/></returns>
         public Hsv ToHsv(Lms color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToHsv(xyzColor);
         }
@@ -382,14 +380,14 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Hsv"/></returns>
-        public Hsv ToHsv(in Rgb color) => HsvAndRgbConverter.Convert(color);
+        public static Hsv ToHsv(in Rgb color) => HsvAndRgbConverter.Convert(color);
 
         /// <summary>
         /// Performs the bulk conversion from <see cref="Rgb"/> into <see cref="Hsv"/>
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Rgb> source, Span<Hsv> destination)
+        public static void Convert(ReadOnlySpan<Rgb> source, Span<Hsv> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -401,7 +399,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Rgb sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Hsv dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToHsv(sp);
+                dp = ToHsv(sp);
             }
         }
 
@@ -412,7 +410,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Hsv"/></returns>
         public Hsv ToHsv(in YCbCr color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = this.ToRgb(color);
 
             return HsvAndRgbConverter.Convert(rgb);
         }

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.HunterLab.cs

@@ -336,7 +336,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="HunterLab"/></returns>
         public HunterLab ToHunterLab(in CieXyy color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            var xyzColor = ToCieXyz(color);
             return this.ToHunterLab(xyzColor);
         }
 

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.LinearRgb.cs

@@ -12,8 +12,6 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// </content>
     public partial class ColorSpaceConverter
     {
-        private static readonly RgbToLinearRgbConverter RgbToLinearRgbConverter = new RgbToLinearRgbConverter();
-
         /// <summary>
         /// Performs the bulk conversion from <see cref="CieLab"/> into <see cref="LinearRgb"/>.
         /// </summary>
@@ -145,7 +143,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors.</param>
         /// <param name="destination">The span to the destination colors.</param>
-        public void Convert(ReadOnlySpan<Cmyk> source, Span<LinearRgb> destination)
+        public static void Convert(ReadOnlySpan<Cmyk> source, Span<LinearRgb> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -157,7 +155,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Cmyk sp = ref Unsafe.Add(ref sourceRef, i);
                 ref LinearRgb dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToLinearRgb(sp);
+                dp = ToLinearRgb(sp);
             }
         }
 
@@ -166,7 +164,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors.</param>
         /// <param name="destination">The span to the destination colors.</param>
-        public void Convert(ReadOnlySpan<Hsl> source, Span<LinearRgb> destination)
+        public static void Convert(ReadOnlySpan<Hsl> source, Span<LinearRgb> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -178,7 +176,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Hsl sp = ref Unsafe.Add(ref sourceRef, i);
                 ref LinearRgb dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToLinearRgb(sp);
+                dp = ToLinearRgb(sp);
             }
         }
 
@@ -187,7 +185,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors.</param>
         /// <param name="destination">The span to the destination colors.</param>
-        public void Convert(ReadOnlySpan<Hsv> source, Span<LinearRgb> destination)
+        public static void Convert(ReadOnlySpan<Hsv> source, Span<LinearRgb> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -199,7 +197,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Hsv sp = ref Unsafe.Add(ref sourceRef, i);
                 ref LinearRgb dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToLinearRgb(sp);
+                dp = ToLinearRgb(sp);
             }
         }
 
@@ -250,7 +248,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Rgb> source, Span<LinearRgb> destination)
+        public static void Convert(ReadOnlySpan<Rgb> source, Span<LinearRgb> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -262,7 +260,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Rgb sp = ref Unsafe.Add(ref sourceRef, i);
                 ref LinearRgb dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToLinearRgb(sp);
+                dp = ToLinearRgb(sp);
             }
         }
 
@@ -294,7 +292,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="LinearRgb"/></returns>
         public LinearRgb ToLinearRgb(in CieLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToLinearRgb(xyzColor);
         }
 
@@ -305,7 +303,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="LinearRgb"/></returns>
         public LinearRgb ToLinearRgb(in CieLch color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToLinearRgb(xyzColor);
         }
 
@@ -316,7 +314,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="LinearRgb"/></returns>
         public LinearRgb ToLinearRgb(in CieLchuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToLinearRgb(xyzColor);
         }
 
@@ -327,7 +325,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="LinearRgb"/></returns>
         public LinearRgb ToLinearRgb(in CieLuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToLinearRgb(xyzColor);
         }
 
@@ -338,7 +336,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="LinearRgb"/></returns>
         public LinearRgb ToLinearRgb(in CieXyy color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = ToCieXyz(color);
             return this.ToLinearRgb(xyzColor);
         }
 
@@ -361,10 +359,10 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="LinearRgb"/></returns>
-        public LinearRgb ToLinearRgb(in Cmyk color)
+        public static LinearRgb ToLinearRgb(in Cmyk color)
         {
-            var rgb = this.ToRgb(color);
-            return this.ToLinearRgb(rgb);
+            Rgb rgb = ToRgb(color);
+            return ToLinearRgb(rgb);
         }
 
         /// <summary>
@@ -372,10 +370,10 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="LinearRgb"/></returns>
-        public LinearRgb ToLinearRgb(in Hsl color)
+        public static LinearRgb ToLinearRgb(in Hsl color)
         {
-            var rgb = this.ToRgb(color);
-            return this.ToLinearRgb(rgb);
+            Rgb rgb = ToRgb(color);
+            return ToLinearRgb(rgb);
         }
 
         /// <summary>
@@ -383,10 +381,10 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="LinearRgb"/></returns>
-        public LinearRgb ToLinearRgb(in Hsv color)
+        public static LinearRgb ToLinearRgb(in Hsv color)
         {
-            var rgb = this.ToRgb(color);
-            return this.ToLinearRgb(rgb);
+            Rgb rgb = ToRgb(color);
+            return ToLinearRgb(rgb);
         }
 
         /// <summary>
@@ -396,7 +394,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="LinearRgb"/></returns>
         public LinearRgb ToLinearRgb(in HunterLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToLinearRgb(xyzColor);
         }
 
@@ -407,7 +405,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="LinearRgb"/></returns>
         public LinearRgb ToLinearRgb(in Lms color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToLinearRgb(xyzColor);
         }
 
@@ -416,11 +414,8 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="LinearRgb"/></returns>
-        public LinearRgb ToLinearRgb(in Rgb color)
-        {
-            // Conversion
-            return RgbToLinearRgbConverter.Convert(color);
-        }
+        public static LinearRgb ToLinearRgb(in Rgb color)
+            => RgbToLinearRgbConverter.Convert(color);
 
         /// <summary>
         /// Converts a <see cref="YCbCr"/> into a <see cref="LinearRgb"/>.
@@ -429,8 +424,8 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="LinearRgb"/></returns>
         public LinearRgb ToLinearRgb(in YCbCr color)
         {
-            var rgb = this.ToRgb(color);
-            return this.ToLinearRgb(rgb);
+            Rgb rgb = this.ToRgb(color);
+            return ToLinearRgb(rgb);
         }
     }
 }

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.Lms.cs

@@ -336,7 +336,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Lms"/></returns>
         public Lms ToLms(in CieXyy color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            var xyzColor = ToCieXyz(color);
             return this.ToLms(xyzColor);
         }
 

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.Rgb.cs

@@ -12,8 +12,6 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// </content>
     public partial class ColorSpaceConverter
     {
-        private static readonly LinearRgbToRgbConverter LinearRgbToRgbConverter = new LinearRgbToRgbConverter();
-
         /// <summary>
         /// Performs the bulk conversion from <see cref="CieLab"/> into <see cref="Rgb"/>
         /// </summary>
@@ -145,7 +143,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Cmyk> source, Span<Rgb> destination)
+        public static void Convert(ReadOnlySpan<Cmyk> source, Span<Rgb> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -157,7 +155,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Cmyk sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Rgb dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToRgb(sp);
+                dp = ToRgb(sp);
             }
         }
 
@@ -166,7 +164,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Hsv> source, Span<Rgb> destination)
+        public static void Convert(ReadOnlySpan<Hsv> source, Span<Rgb> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -178,7 +176,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Hsv sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Rgb dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToRgb(sp);
+                dp = ToRgb(sp);
             }
         }
 
@@ -187,7 +185,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Hsl> source, Span<Rgb> destination)
+        public static void Convert(ReadOnlySpan<Hsl> source, Span<Rgb> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -199,7 +197,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Hsl sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Rgb dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToRgb(sp);
+                dp = ToRgb(sp);
             }
         }
 
@@ -229,7 +227,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<LinearRgb> source, Span<Rgb> destination)
+        public static void Convert(ReadOnlySpan<LinearRgb> source, Span<Rgb> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -241,7 +239,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref LinearRgb sp = ref Unsafe.Add(ref sourceRef, i);
                 ref Rgb dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToRgb(sp);
+                dp = ToRgb(sp);
             }
         }
 
@@ -294,7 +292,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Rgb"/></returns>
         public Rgb ToRgb(in CieLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToRgb(xyzColor);
         }
 
@@ -305,7 +303,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Rgb"/></returns>
         public Rgb ToRgb(in CieLch color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToRgb(xyzColor);
         }
 
@@ -316,7 +314,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Rgb"/></returns>
         public Rgb ToRgb(in CieLchuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToRgb(xyzColor);
         }
 
@@ -327,7 +325,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Rgb"/></returns>
         public Rgb ToRgb(in CieLuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToRgb(xyzColor);
         }
 
@@ -338,7 +336,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Rgb"/></returns>
         public Rgb ToRgb(in CieXyy color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = ToCieXyz(color);
             return this.ToRgb(xyzColor);
         }
 
@@ -350,10 +348,10 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         public Rgb ToRgb(in CieXyz color)
         {
             // Conversion
-            var linear = this.ToLinearRgb(color);
+            LinearRgb linear = this.ToLinearRgb(color);
 
             // Compand
-            return this.ToRgb(linear);
+            return ToRgb(linear);
         }
 
         /// <summary>
@@ -361,33 +359,21 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Rgb"/></returns>
-        public Rgb ToRgb(in Cmyk color)
-        {
-            // Conversion
-            return CmykAndRgbConverter.Convert(color);
-        }
+        public static Rgb ToRgb(in Cmyk color) => CmykAndRgbConverter.Convert(color);
 
         /// <summary>
         /// Converts a <see cref="Hsv"/> into a <see cref="Rgb"/>
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Rgb"/></returns>
-        public Rgb ToRgb(in Hsv color)
-        {
-            // Conversion
-            return HsvAndRgbConverter.Convert(color);
-        }
+        public static Rgb ToRgb(in Hsv color) => HsvAndRgbConverter.Convert(color);
 
         /// <summary>
         /// Converts a <see cref="Hsl"/> into a <see cref="Rgb"/>
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Rgb"/></returns>
-        public Rgb ToRgb(in Hsl color)
-        {
-            // Conversion
-            return HslAndRgbConverter.Convert(color);
-        }
+        public static Rgb ToRgb(in Hsl color) => HslAndRgbConverter.Convert(color);
 
         /// <summary>
         /// Converts a <see cref="HunterLab"/> into a <see cref="Rgb"/>
@@ -396,7 +382,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Rgb"/></returns>
         public Rgb ToRgb(in HunterLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToRgb(xyzColor);
         }
 
@@ -405,11 +391,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="Rgb"/></returns>
-        public Rgb ToRgb(in LinearRgb color)
-        {
-            // Conversion
-            return LinearRgbToRgbConverter.Convert(color);
-        }
+        public static Rgb ToRgb(in LinearRgb color) => LinearRgbToRgbConverter.Convert(color);
 
         /// <summary>
         /// Converts a <see cref="Lms"/> into a <see cref="Rgb"/>
@@ -418,7 +400,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="Rgb"/></returns>
         public Rgb ToRgb(in Lms color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
             return this.ToRgb(xyzColor);
         }
 

src/ImageSharp/ColorSpaces/Conversion/ColorSpaceConverter.YCbCr.cs

@@ -12,8 +12,6 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// </content>
     public partial class ColorSpaceConverter
     {
-        private static readonly YCbCrAndRgbConverter YCbCrAndRgbConverter = new YCbCrAndRgbConverter();
-
         /// <summary>
         /// Performs the bulk conversion from <see cref="CieLab"/> into <see cref="YCbCr"/>.
         /// </summary>
@@ -124,7 +122,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Cmyk> source, Span<YCbCr> destination)
+        public static void Convert(ReadOnlySpan<Cmyk> source, Span<YCbCr> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -136,7 +134,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Cmyk sp = ref Unsafe.Add(ref sourceRef, i);
                 ref YCbCr dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToYCbCr(sp);
+                dp = ToYCbCr(sp);
             }
         }
 
@@ -145,7 +143,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Hsl> source, Span<YCbCr> destination)
+        public static void Convert(ReadOnlySpan<Hsl> source, Span<YCbCr> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -157,7 +155,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Hsl sp = ref Unsafe.Add(ref sourceRef, i);
                 ref YCbCr dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToYCbCr(sp);
+                dp = ToYCbCr(sp);
             }
         }
 
@@ -166,7 +164,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Hsv> source, Span<YCbCr> destination)
+        public static void Convert(ReadOnlySpan<Hsv> source, Span<YCbCr> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -178,7 +176,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Hsv sp = ref Unsafe.Add(ref sourceRef, i);
                 ref YCbCr dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToYCbCr(sp);
+                dp = ToYCbCr(sp);
             }
         }
 
@@ -208,7 +206,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<LinearRgb> source, Span<YCbCr> destination)
+        public static void Convert(ReadOnlySpan<LinearRgb> source, Span<YCbCr> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -220,7 +218,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref LinearRgb sp = ref Unsafe.Add(ref sourceRef, i);
                 ref YCbCr dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToYCbCr(sp);
+                dp = ToYCbCr(sp);
             }
         }
 
@@ -250,7 +248,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="source">The span to the source colors</param>
         /// <param name="destination">The span to the destination colors</param>
-        public void Convert(ReadOnlySpan<Rgb> source, Span<YCbCr> destination)
+        public static void Convert(ReadOnlySpan<Rgb> source, Span<YCbCr> destination)
         {
             Guard.DestinationShouldNotBeTooShort(source, destination, nameof(destination));
             int count = source.Length;
@@ -262,7 +260,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             {
                 ref Rgb sp = ref Unsafe.Add(ref sourceRef, i);
                 ref YCbCr dp = ref Unsafe.Add(ref destRef, i);
-                dp = this.ToYCbCr(sp);
+                dp = ToYCbCr(sp);
             }
         }
 
@@ -273,7 +271,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="YCbCr"/></returns>
         public YCbCr ToYCbCr(in CieLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToYCbCr(xyzColor);
         }
@@ -285,7 +283,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="YCbCr"/></returns>
         public YCbCr ToYCbCr(in CieLch color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToYCbCr(xyzColor);
         }
@@ -297,7 +295,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="YCbCr"/></returns>
         public YCbCr ToYCbCr(in CieLuv color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToYCbCr(xyzColor);
         }
@@ -309,7 +307,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="YCbCr"/></returns>
         public YCbCr ToYCbCr(in CieXyy color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = ToCieXyz(color);
 
             return this.ToYCbCr(xyzColor);
         }
@@ -321,7 +319,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="YCbCr"/></returns>
         public YCbCr ToYCbCr(in CieXyz color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = this.ToRgb(color);
 
             return YCbCrAndRgbConverter.Convert(rgb);
         }
@@ -331,9 +329,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="YCbCr"/></returns>
-        public YCbCr ToYCbCr(in Cmyk color)
+        public static YCbCr ToYCbCr(in Cmyk color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return YCbCrAndRgbConverter.Convert(rgb);
         }
@@ -343,9 +341,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="YCbCr"/></returns>
-        public YCbCr ToYCbCr(in Hsl color)
+        public static YCbCr ToYCbCr(in Hsl color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return YCbCrAndRgbConverter.Convert(rgb);
         }
@@ -355,9 +353,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="YCbCr"/></returns>
-        public YCbCr ToYCbCr(in Hsv color)
+        public static YCbCr ToYCbCr(in Hsv color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return YCbCrAndRgbConverter.Convert(rgb);
         }
@@ -369,7 +367,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="YCbCr"/></returns>
         public YCbCr ToYCbCr(in HunterLab color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToYCbCr(xyzColor);
         }
@@ -379,9 +377,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="YCbCr"/></returns>
-        public YCbCr ToYCbCr(in LinearRgb color)
+        public static YCbCr ToYCbCr(in LinearRgb color)
         {
-            var rgb = this.ToRgb(color);
+            Rgb rgb = ToRgb(color);
 
             return YCbCrAndRgbConverter.Convert(rgb);
         }
@@ -393,7 +391,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <returns>The <see cref="YCbCr"/></returns>
         public YCbCr ToYCbCr(in Lms color)
         {
-            var xyzColor = this.ToCieXyz(color);
+            CieXyz xyzColor = this.ToCieXyz(color);
 
             return this.ToYCbCr(xyzColor);
         }
@@ -403,6 +401,6 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// </summary>
         /// <param name="color">The color to convert.</param>
         /// <returns>The <see cref="YCbCr"/></returns>
-        public YCbCr ToYCbCr(in Rgb color) => YCbCrAndRgbConverter.Convert(color);
+        public static YCbCr ToYCbCr(in Rgb color) => YCbCrAndRgbConverter.Convert(color);
     }
 }

src/ImageSharp/ColorSpaces/Conversion/Implementation/CieXyChromaticityCoordinates.cs

@@ -12,13 +12,25 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// </summary>
     public readonly struct CieXyChromaticityCoordinates : IEquatable<CieXyChromaticityCoordinates>
     {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="CieXyChromaticityCoordinates"/> struct.
+        /// </summary>
+        /// <param name="x">Chromaticity coordinate x (usually from 0 to 1)</param>
+        /// <param name="y">Chromaticity coordinate y (usually from 0 to 1)</param>
+        [MethodImpl(InliningOptions.ShortMethod)]
+        public CieXyChromaticityCoordinates(float x, float y)
+        {
+            this.X = x;
+            this.Y = y;
+        }
+
         /// <summary>
         /// Gets the chromaticity X-coordinate.
         /// </summary>
         /// <remarks>
         /// Ranges usually from 0 to 1.
         /// </remarks>
-        public readonly float X;
+        public readonly float X { get; }
 
         /// <summary>
         /// Gets the chromaticity Y-coordinate
@@ -26,19 +38,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <remarks>
         /// Ranges usually from 0 to 1.
         /// </remarks>
-        public readonly float Y;
-
-        /// <summary>
-        /// Initializes a new instance of the <see cref="CieXyChromaticityCoordinates"/> struct.
-        /// </summary>
-        /// <param name="x">Chromaticity coordinate x (usually from 0 to 1)</param>
-        /// <param name="y">Chromaticity coordinate y (usually from 0 to 1)</param>
-        [MethodImpl(InliningOptions.ShortMethod)]
-        public CieXyChromaticityCoordinates(float x, float y)
-        {
-            this.X = x;
-            this.Y = y;
-        }
+        public readonly float Y { get; }
 
         /// <summary>
         /// Compares two <see cref="CieXyChromaticityCoordinates"/> objects for equality.
@@ -49,7 +49,8 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// True if the current left is equal to the <paramref name="right"/> parameter; otherwise, false.
         /// </returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public static bool operator ==(CieXyChromaticityCoordinates left, CieXyChromaticityCoordinates right) => left.Equals(right);
+        public static bool operator ==(CieXyChromaticityCoordinates left, CieXyChromaticityCoordinates right)
+            => left.Equals(right);
 
         /// <summary>
         /// Compares two <see cref="CieXyChromaticityCoordinates"/> objects for inequality
@@ -60,20 +61,25 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// True if the current left is unequal to the <paramref name="right"/> parameter; otherwise, false.
         /// </returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public static bool operator !=(CieXyChromaticityCoordinates left, CieXyChromaticityCoordinates right) => !left.Equals(right);
+        public static bool operator !=(CieXyChromaticityCoordinates left, CieXyChromaticityCoordinates right)
+            => !left.Equals(right);
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]
-        public override int GetHashCode() => HashCode.Combine(this.X, this.Y);
+        public override int GetHashCode()
+            => HashCode.Combine(this.X, this.Y);
 
         /// <inheritdoc/>
-        public override string ToString() => FormattableString.Invariant($"CieXyChromaticityCoordinates({this.X:#0.##}, {this.Y:#0.##})");
+        public override string ToString()
+            => FormattableString.Invariant($"CieXyChromaticityCoordinates({this.X:#0.##}, {this.Y:#0.##})");
 
         /// <inheritdoc/>
-        public override bool Equals(object obj) => obj is CieXyChromaticityCoordinates other && this.Equals(other);
+        public override bool Equals(object obj)
+            => obj is CieXyChromaticityCoordinates other && this.Equals(other);
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public bool Equals(CieXyChromaticityCoordinates other) => this.X.Equals(other.X) && this.Y.Equals(other.Y);
+        public bool Equals(CieXyChromaticityCoordinates other)
+            => this.X.Equals(other.X) && this.Y.Equals(other.Y);
     }
 }

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/CIeLchToCieLabConverter.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -9,7 +9,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// <summary>
     /// Converts from <see cref="CieLch"/> to <see cref="CieLab"/>.
     /// </summary>
-    internal sealed class CieLchToCieLabConverter
+    internal static class CieLchToCieLabConverter
     {
         /// <summary>
         /// Performs the conversion from the <see cref="CieLch"/> input to an instance of <see cref="CieLab"/> type.
@@ -17,7 +17,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public CieLab Convert(in CieLch input)
+        public static CieLab Convert(in CieLch input)
         {
             // Conversion algorithm described here:
             // https://en.wikipedia.org/wiki/Lab_color_space#Cylindrical_representation:_CIELCh_or_CIEHLC

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/CieLabToCieLchConverter.cs

@@ -9,7 +9,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// <summary>
     /// Converts from <see cref="CieLab"/> to <see cref="CieLch"/>.
     /// </summary>
-    internal sealed class CieLabToCieLchConverter
+    internal static class CieLabToCieLchConverter
     {
         /// <summary>
         /// Performs the conversion from the <see cref="CieLab"/> input to an instance of <see cref="CieLch"/> type.
@@ -17,7 +17,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public CieLch Convert(in CieLab input)
+        public static CieLch Convert(in CieLab input)
         {
             // Conversion algorithm described here:
             // https://en.wikipedia.org/wiki/Lab_color_space#Cylindrical_representation:_CIELCh_or_CIEHLC

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/CieLabToCieXyzConverter.cs

@@ -9,7 +9,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// <summary>
     /// Converts from <see cref="CieLab"/> to <see cref="CieXyz"/>.
     /// </summary>
-    internal sealed class CieLabToCieXyzConverter
+    internal static class CieLabToCieXyzConverter
     {
         /// <summary>
         /// Performs the conversion from the <see cref="CieLab"/> input to an instance of <see cref="CieXyz"/> type.
@@ -17,7 +17,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public CieXyz Convert(in CieLab input)
+        public static CieXyz Convert(in CieLab input)
         {
             // Conversion algorithm described here: http://www.brucelindbloom.com/index.html?Eqn_Lab_to_XYZ.html
             float l = input.L, a = input.A, b = input.B;
@@ -32,10 +32,10 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             float yr = l > CieConstants.Kappa * CieConstants.Epsilon ? Numerics.Pow3((l + 16F) / 116F) : l / CieConstants.Kappa;
             float zr = fz3 > CieConstants.Epsilon ? fz3 : ((116F * fz) - 16F) / CieConstants.Kappa;
 
-            var wxyz = new Vector3(input.WhitePoint.X, input.WhitePoint.Y, input.WhitePoint.Z);
+            Vector3 wxyz = new(input.WhitePoint.X, input.WhitePoint.Y, input.WhitePoint.Z);
 
             // Avoids XYZ coordinates out range (restricted by 0 and XYZ reference white)
-            var xyzr = Vector3.Clamp(new Vector3(xr, yr, zr), Vector3.Zero, Vector3.One);
+            Vector3 xyzr = Vector3.Clamp(new Vector3(xr, yr, zr), Vector3.Zero, Vector3.One);
 
             Vector3 xyz = xyzr * wxyz;
             return new CieXyz(xyz);

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/CieLchuvToCieLuvConverter.cs

@@ -9,7 +9,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// <summary>
     /// Converts from <see cref="CieLch"/> to <see cref="CieLab"/>.
     /// </summary>
-    internal sealed class CieLchuvToCieLuvConverter
+    internal static class CieLchuvToCieLuvConverter
     {
         /// <summary>
         /// Performs the conversion from the <see cref="CieLchuv"/> input to an instance of <see cref="CieLuv"/> type.
@@ -17,7 +17,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public CieLuv Convert(in CieLchuv input)
+        public static CieLuv Convert(in CieLchuv input)
         {
             // Conversion algorithm described here:
             // https://en.wikipedia.org/wiki/CIELUV#Cylindrical_representation_.28CIELCH.29

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/CieLuvToCieLchuvConverter.cs

@@ -9,7 +9,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// <summary>
     /// Converts from <see cref="CieLab"/> to <see cref="CieLch"/>.
     /// </summary>
-    internal sealed class CieLuvToCieLchuvConverter
+    internal static class CieLuvToCieLchuvConverter
     {
         /// <summary>
         /// Performs the conversion from the <see cref="CieLuv"/> input to an instance of <see cref="CieLchuv"/> type.
@@ -17,7 +17,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public CieLchuv Convert(in CieLuv input)
+        public static CieLchuv Convert(in CieLuv input)
         {
             // Conversion algorithm described here:
             // https://en.wikipedia.org/wiki/CIELUV#Cylindrical_representation_.28CIELCH.29

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/CieLuvToCieXyzConverter.cs

@@ -8,14 +8,14 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// <summary>
     /// Converts from <see cref="CieLuv"/> to <see cref="CieXyz"/>.
     /// </summary>
-    internal sealed class CieLuvToCieXyzConverter
+    internal static class CieLuvToCieXyzConverter
     {
         /// <summary>
         /// Performs the conversion from the <see cref="CieLuv"/> input to an instance of <see cref="CieXyz"/> type.
         /// </summary>
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result</returns>
-        public CieXyz Convert(in CieLuv input)
+        public static CieXyz Convert(in CieLuv input)
         {
             // Conversion algorithm described here: http://www.brucelindbloom.com/index.html?Eqn_Luv_to_XYZ.html
             float l = input.L, u = input.U, v = input.V;

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/CieXyzAndCieXyyConverter.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -10,7 +10,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// Color converter between CIE XYZ and CIE xyY.
     /// <see href="http://www.brucelindbloom.com/"/> for formulas.
     /// </summary>
-    internal sealed class CieXyzAndCieXyyConverter
+    internal static class CieXyzAndCieXyyConverter
     {
         /// <summary>
         /// Performs the conversion from the <see cref="CieXyz"/> input to an instance of <see cref="CieXyy"/> type.
@@ -18,7 +18,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public CieXyy Convert(in CieXyz input)
+        public static CieXyy Convert(in CieXyz input)
         {
             float x = input.X / (input.X + input.Y + input.Z);
             float y = input.Y / (input.X + input.Y + input.Z);
@@ -37,7 +37,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public CieXyz Convert(in CieXyy input)
+        public static CieXyz Convert(in CieXyy input)
         {
             if (MathF.Abs(input.Y) < Constants.Epsilon)
             {

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/CieXyzAndLmsConverter.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System.Numerics;
@@ -49,7 +49,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         [MethodImpl(InliningOptions.ShortMethod)]
         public Lms Convert(in CieXyz input)
         {
-            var vector = Vector3.Transform(input.ToVector3(), this.transformationMatrix);
+            Vector3 vector = Vector3.Transform(input.ToVector3(), this.transformationMatrix);
 
             return new Lms(vector);
         }
@@ -62,7 +62,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         [MethodImpl(InliningOptions.ShortMethod)]
         public CieXyz Convert(in Lms input)
         {
-            var vector = Vector3.Transform(input.ToVector3(), this.inverseTransformationMatrix);
+            Vector3 vector = Vector3.Transform(input.ToVector3(), this.inverseTransformationMatrix);
 
             return new CieXyz(vector);
         }

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/CmykAndRgbConverter.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -10,7 +10,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// <summary>
     /// Color converter between <see cref="Cmyk"/> and <see cref="Rgb"/>.
     /// </summary>
-    internal sealed class CmykAndRgbConverter
+    internal static class CmykAndRgbConverter
     {
         /// <summary>
         /// Performs the conversion from the <see cref="Cmyk"/> input to an instance of <see cref="Rgb"/> type.
@@ -18,7 +18,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgb Convert(in Cmyk input)
+        public static Rgb Convert(in Cmyk input)
         {
             Vector3 rgb = (Vector3.One - new Vector3(input.C, input.M, input.Y)) * (Vector3.One - new Vector3(input.K));
             return new Rgb(rgb);
@@ -30,13 +30,13 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result.</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Cmyk Convert(in Rgb input)
+        public static Cmyk Convert(in Rgb input)
         {
             // To CMY
             Vector3 cmy = Vector3.One - input.ToVector3();
 
             // To CMYK
-            var k = new Vector3(MathF.Min(cmy.X, MathF.Min(cmy.Y, cmy.Z)));
+            Vector3 k = new(MathF.Min(cmy.X, MathF.Min(cmy.Y, cmy.Z)));
 
             if (MathF.Abs(k.X - 1F) < Constants.Epsilon)
             {

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/HslAndRgbConverter.cs

@@ -10,7 +10,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// Color converter between HSL and Rgb
     /// See <see href="http://www.poynton.com/PDFs/coloureq.pdf"/> for formulas.
     /// </summary>
-    internal sealed class HslAndRgbConverter
+    internal static class HslAndRgbConverter
     {
         /// <summary>
         /// Performs the conversion from the <see cref="Hsl"/> input to an instance of <see cref="Rgb"/> type.
@@ -18,7 +18,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgb Convert(in Hsl input)
+        public static Rgb Convert(in Hsl input)
         {
             float rangedH = input.H / 360F;
             float r = 0;
@@ -53,7 +53,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Hsl Convert(in Rgb input)
+        public static Hsl Convert(in Rgb input)
         {
             float r = input.R;
             float g = input.G;

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/HsvAndRgbConverter.cs

@@ -10,7 +10,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// Color converter between HSV and Rgb
     /// See <see href="http://www.poynton.com/PDFs/coloureq.pdf"/> for formulas.
     /// </summary>
-    internal sealed class HsvAndRgbConverter
+    internal static class HsvAndRgbConverter
     {
         /// <summary>
         /// Performs the conversion from the <see cref="Hsv"/> input to an instance of <see cref="Rgb"/> type.
@@ -18,7 +18,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgb Convert(in Hsv input)
+        public static Rgb Convert(in Hsv input)
         {
             float s = input.S;
             float v = input.V;
@@ -85,7 +85,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Hsv Convert(in Rgb input)
+        public static Hsv Convert(in Rgb input)
         {
             float r = input.R;
             float g = input.G;

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/HunterLabToCieXyzConverter.cs

@@ -9,7 +9,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// <summary>
     /// Color converter between <see cref="HunterLab"/> and <see cref="CieXyz"/>
     /// </summary>
-    internal sealed class HunterLabToCieXyzConverter : CieXyzAndHunterLabConverterBase
+    internal class HunterLabToCieXyzConverter : CieXyzAndHunterLabConverterBase
     {
         /// <summary>
         /// Performs the conversion from the <see cref="HunterLab"/> input to an instance of <see cref="CieXyz"/> type.
@@ -17,7 +17,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public CieXyz Convert(in HunterLab input)
+        public static CieXyz Convert(in HunterLab input)
         {
             // Conversion algorithm described here: http://en.wikipedia.org/wiki/Lab_color_space#Hunter_Lab
             float l = input.L, a = input.A, b = input.B;

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/LinearRgbAndCieXyzConverterBase.cs

@@ -28,25 +28,22 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
             float yb = chromaticity.B.Y;
 
             float mXr = xr / yr;
-            const float Yr = 1;
             float mZr = (1 - xr - yr) / yr;
 
             float mXg = xg / yg;
-            const float Yg = 1;
             float mZg = (1 - xg - yg) / yg;
 
             float mXb = xb / yb;
-            const float Yb = 1;
             float mZb = (1 - xb - yb) / yb;
 
-            var xyzMatrix = new Matrix4x4
+            Matrix4x4 xyzMatrix = new()
             {
                 M11 = mXr,
                 M21 = mXg,
                 M31 = mXb,
-                M12 = Yr,
-                M22 = Yg,
-                M32 = Yb,
+                M12 = 1F,
+                M22 = 1F,
+                M32 = 1F,
                 M13 = mZr,
                 M23 = mZg,
                 M33 = mZb,
@@ -55,7 +52,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
 
             Matrix4x4.Invert(xyzMatrix, out Matrix4x4 inverseXyzMatrix);
 
-            var vector = Vector3.Transform(workingSpace.WhitePoint.ToVector3(), inverseXyzMatrix);
+            Vector3 vector = Vector3.Transform(workingSpace.WhitePoint.ToVector3(), inverseXyzMatrix);
 
             // Use transposed Rows/Columns
             // TODO: Is there a built in method for this multiplication?
@@ -64,9 +61,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
                 M11 = vector.X * mXr,
                 M21 = vector.Y * mXg,
                 M31 = vector.Z * mXb,
-                M12 = vector.X * Yr,
-                M22 = vector.Y * Yg,
-                M32 = vector.Z * Yb,
+                M12 = vector.X * 1,
+                M22 = vector.Y * 1,
+                M32 = vector.Z * 1,
                 M13 = vector.X * mZr,
                 M23 = vector.Y * mZg,
                 M33 = vector.Z * mZb,

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/LinearRgbToCieXyzConverter.cs

@@ -46,7 +46,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         {
             DebugGuard.IsTrue(input.WorkingSpace.Equals(this.SourceWorkingSpace), nameof(input.WorkingSpace), "Input and source working spaces must be equal.");
 
-            var vector = Vector3.Transform(input.ToVector3(), this.conversionMatrix);
+            Vector3 vector = Vector3.Transform(input.ToVector3(), this.conversionMatrix);
             return new CieXyz(vector);
         }
     }

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/LinearRgbToRgbConverter.cs

@@ -8,7 +8,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// <summary>
     /// Color converter between <see cref="LinearRgb"/> and <see cref="Rgb"/>.
     /// </summary>
-    internal sealed class LinearRgbToRgbConverter
+    internal static class LinearRgbToRgbConverter
     {
         /// <summary>
         /// Performs the conversion from the <see cref="LinearRgb"/> input to an instance of <see cref="Rgb"/> type.
@@ -16,13 +16,11 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result.</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgb Convert(in LinearRgb input)
-        {
-            return new Rgb(
+        public static Rgb Convert(in LinearRgb input) =>
+            new(
                 r: input.WorkingSpace.Compress(input.R),
                 g: input.WorkingSpace.Compress(input.G),
                 b: input.WorkingSpace.Compress(input.B),
                 workingSpace: input.WorkingSpace);
-        }
     }
 }

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/RgbToLinearRgbConverter.cs

@@ -8,7 +8,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// <summary>
     /// Color converter between Rgb and LinearRgb.
     /// </summary>
-    internal class RgbToLinearRgbConverter
+    internal static class RgbToLinearRgbConverter
     {
         /// <summary>
         /// Performs the conversion from the <see cref="Rgb"/> input to an instance of <see cref="LinearRgb"/> type.
@@ -16,13 +16,11 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result.</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public LinearRgb Convert(in Rgb input)
-        {
-            return new LinearRgb(
+        public static LinearRgb Convert(in Rgb input)
+            => new(
                 r: input.WorkingSpace.Expand(input.R),
                 g: input.WorkingSpace.Expand(input.G),
                 b: input.WorkingSpace.Expand(input.B),
                 workingSpace: input.WorkingSpace);
-        }
     }
 }

src/ImageSharp/ColorSpaces/Conversion/Implementation/Converters/YCbCrAndRgbConverter.cs

@@ -11,9 +11,9 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
     /// Color converter between <see cref="YCbCr"/> and <see cref="Rgb"/>
     /// See <see href="https://en.wikipedia.org/wiki/YCbCr#JPEG_conversion"/> for formulas.
     /// </summary>
-    internal sealed class YCbCrAndRgbConverter
+    internal static class YCbCrAndRgbConverter
     {
-        private static readonly Vector3 MaxBytes = new Vector3(255F);
+        private static readonly Vector3 MaxBytes = new(255F);
 
         /// <summary>
         /// Performs the conversion from the <see cref="YCbCr"/> input to an instance of <see cref="Rgb"/> type.
@@ -21,7 +21,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result.</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Rgb Convert(in YCbCr input)
+        public static Rgb Convert(in YCbCr input)
         {
             float y = input.Y;
             float cb = input.Cb - 128F;
@@ -40,7 +40,7 @@ namespace SixLabors.ImageSharp.ColorSpaces.Conversion
         /// <param name="input">The input color instance.</param>
         /// <returns>The converted result.</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public YCbCr Convert(in Rgb input)
+        public static YCbCr Convert(in Rgb input)
         {
             Vector3 rgb = input.ToVector3() * MaxBytes;
             float r = rgb.X;

src/ImageSharp/ColorSpaces/Hsl.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -13,25 +13,7 @@ namespace SixLabors.ImageSharp.ColorSpaces
     public readonly struct Hsl : IEquatable<Hsl>
     {
         private static readonly Vector3 Min = Vector3.Zero;
-        private static readonly Vector3 Max = new Vector3(360, 1, 1);
-
-        /// <summary>
-        /// Gets the hue component.
-        /// <remarks>A value ranging between 0 and 360.</remarks>
-        /// </summary>
-        public readonly float H;
-
-        /// <summary>
-        /// Gets the saturation component.
-        /// <remarks>A value ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float S;
-
-        /// <summary>
-        /// Gets the lightness component.
-        /// <remarks>A value ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float L;
+        private static readonly Vector3 Max = new(360, 1, 1);
 
         /// <summary>
         /// Initializes a new instance of the <see cref="Hsl"/> struct.
@@ -58,6 +40,24 @@ namespace SixLabors.ImageSharp.ColorSpaces
             this.L = vector.Z;
         }
 
+        /// <summary>
+        /// Gets the hue component.
+        /// <remarks>A value ranging between 0 and 360.</remarks>
+        /// </summary>
+        public readonly float H { get; }
+
+        /// <summary>
+        /// Gets the saturation component.
+        /// <remarks>A value ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float S { get; }
+
+        /// <summary>
+        /// Gets the lightness component.
+        /// <remarks>A value ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float L { get; }
+
         /// <summary>
         /// Compares two <see cref="Hsl"/> objects for equality.
         /// </summary>
@@ -95,10 +95,8 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
         public bool Equals(Hsl other)
-        {
-            return this.H.Equals(other.H)
-                && this.S.Equals(other.S)
-                && this.L.Equals(other.L);
-        }
+            => this.H.Equals(other.H)
+            && this.S.Equals(other.S)
+            && this.L.Equals(other.L);
     }
 }

src/ImageSharp/ColorSpaces/Hsv.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -13,25 +13,7 @@ namespace SixLabors.ImageSharp.ColorSpaces
     public readonly struct Hsv : IEquatable<Hsv>
     {
         private static readonly Vector3 Min = Vector3.Zero;
-        private static readonly Vector3 Max = new Vector3(360, 1, 1);
-
-        /// <summary>
-        /// Gets the hue component.
-        /// <remarks>A value ranging between 0 and 360.</remarks>
-        /// </summary>
-        public readonly float H;
-
-        /// <summary>
-        /// Gets the saturation component.
-        /// <remarks>A value ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float S;
-
-        /// <summary>
-        /// Gets the value (brightness) component.
-        /// <remarks>A value ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float V;
+        private static readonly Vector3 Max = new(360, 1, 1);
 
         /// <summary>
         /// Initializes a new instance of the <see cref="Hsv"/> struct.
@@ -58,6 +40,24 @@ namespace SixLabors.ImageSharp.ColorSpaces
             this.V = vector.Z;
         }
 
+        /// <summary>
+        /// Gets the hue component.
+        /// <remarks>A value ranging between 0 and 360.</remarks>
+        /// </summary>
+        public readonly float H { get; }
+
+        /// <summary>
+        /// Gets the saturation component.
+        /// <remarks>A value ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float S { get; }
+
+        /// <summary>
+        /// Gets the value (brightness) component.
+        /// <remarks>A value ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float V { get; }
+
         /// <summary>
         /// Compares two <see cref="Hsv"/> objects for equality.
         /// </summary>
@@ -93,10 +93,8 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
         public bool Equals(Hsv other)
-        {
-            return this.H.Equals(other.H)
-                && this.S.Equals(other.S)
-                && this.V.Equals(other.V);
-        }
+            => this.H.Equals(other.H)
+            && this.S.Equals(other.S)
+            && this.V.Equals(other.V);
     }
 }

src/ImageSharp/ColorSpaces/HunterLab.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -19,29 +19,6 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// </summary>
         public static readonly CieXyz DefaultWhitePoint = Illuminants.C;
 
-        /// <summary>
-        /// Gets the lightness dimension.
-        /// <remarks>A value usually ranging between 0 (black), 100 (diffuse white) or higher (specular white).</remarks>
-        /// </summary>
-        public readonly float L;
-
-        /// <summary>
-        /// Gets the a color component.
-        /// <remarks>A value usually ranging from -100 to 100. Negative is green, positive magenta.</remarks>
-        /// </summary>
-        public readonly float A;
-
-        /// <summary>
-        /// Gets the b color component.
-        /// <remarks>A value usually ranging from -100 to 100. Negative is blue, positive is yellow</remarks>
-        /// </summary>
-        public readonly float B;
-
-        /// <summary>
-        /// Gets the reference white point of this color.
-        /// </summary>
-        public readonly CieXyz WhitePoint;
-
         /// <summary>
         /// Initializes a new instance of the <see cref="HunterLab"/> struct.
         /// </summary>
@@ -94,6 +71,29 @@ namespace SixLabors.ImageSharp.ColorSpaces
             this.WhitePoint = whitePoint;
         }
 
+        /// <summary>
+        /// Gets the lightness dimension.
+        /// <remarks>A value usually ranging between 0 (black), 100 (diffuse white) or higher (specular white).</remarks>
+        /// </summary>
+        public readonly float L { get; }
+
+        /// <summary>
+        /// Gets the a color component.
+        /// <remarks>A value usually ranging from -100 to 100. Negative is green, positive magenta.</remarks>
+        /// </summary>
+        public readonly float A { get; }
+
+        /// <summary>
+        /// Gets the b color component.
+        /// <remarks>A value usually ranging from -100 to 100. Negative is blue, positive is yellow</remarks>
+        /// </summary>
+        public readonly float B { get; }
+
+        /// <summary>
+        /// Gets the reference white point of this color.
+        /// </summary>
+        public readonly CieXyz WhitePoint { get; }
+
         /// <summary>
         /// Compares two <see cref="HunterLab"/> objects for equality.
         /// </summary>
@@ -128,11 +128,9 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
         public bool Equals(HunterLab other)
-        {
-            return this.L.Equals(other.L)
-                && this.A.Equals(other.A)
-                && this.B.Equals(other.B)
-                && this.WhitePoint.Equals(other.WhitePoint);
-        }
+            => this.L.Equals(other.L)
+            && this.A.Equals(other.A)
+            && this.B.Equals(other.B)
+            && this.WhitePoint.Equals(other.WhitePoint);
     }
 }

src/ImageSharp/ColorSpaces/LinearRgb.cs

@@ -21,29 +21,6 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// </summary>
         public static readonly RgbWorkingSpace DefaultWorkingSpace = RgbWorkingSpaces.SRgb;
 
-        /// <summary>
-        /// Gets the red component.
-        /// <remarks>A value usually ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float R;
-
-        /// <summary>
-        /// Gets the green component.
-        /// <remarks>A value usually ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float G;
-
-        /// <summary>
-        /// Gets the blue component.
-        /// <remarks>A value usually ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float B;
-
-        /// <summary>
-        /// Gets the LinearRgb color space <seealso cref="RgbWorkingSpaces"/>
-        /// </summary>
-        public readonly RgbWorkingSpace WorkingSpace;
-
         /// <summary>
         /// Initializes a new instance of the <see cref="LinearRgb"/> struct.
         /// </summary>
@@ -95,6 +72,29 @@ namespace SixLabors.ImageSharp.ColorSpaces
             this.WorkingSpace = workingSpace;
         }
 
+        /// <summary>
+        /// Gets the red component.
+        /// <remarks>A value usually ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float R { get; }
+
+        /// <summary>
+        /// Gets the green component.
+        /// <remarks>A value usually ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float G { get; }
+
+        /// <summary>
+        /// Gets the blue component.
+        /// <remarks>A value usually ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float B { get; }
+
+        /// <summary>
+        /// Gets the LinearRgb color space <seealso cref="RgbWorkingSpaces"/>
+        /// </summary>
+        public readonly RgbWorkingSpace WorkingSpace { get; }
+
         /// <summary>
         /// Compares two <see cref="LinearRgb"/> objects for equality.
         /// </summary>
@@ -122,7 +122,7 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// </summary>
         /// <returns>The <see cref="Vector3"/>.</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Vector3 ToVector3() => new Vector3(this.R, this.G, this.B);
+        public Vector3 ToVector3() => new(this.R, this.G, this.B);
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
@@ -137,10 +137,8 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
         public bool Equals(LinearRgb other)
-        {
-            return this.R.Equals(other.R)
-                && this.G.Equals(other.G)
-                && this.B.Equals(other.B);
-        }
+            => this.R.Equals(other.R)
+            && this.G.Equals(other.G)
+            && this.B.Equals(other.B);
     }
 }

src/ImageSharp/ColorSpaces/Lms.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -14,24 +14,6 @@ namespace SixLabors.ImageSharp.ColorSpaces
     /// </summary>
     public readonly struct Lms : IEquatable<Lms>
     {
-        /// <summary>
-        /// Gets the L long component.
-        /// <remarks>A value usually ranging between -1 and 1.</remarks>
-        /// </summary>
-        public readonly float L;
-
-        /// <summary>
-        /// Gets the M medium component.
-        /// <remarks>A value usually ranging between -1 and 1.</remarks>
-        /// </summary>
-        public readonly float M;
-
-        /// <summary>
-        /// Gets the S short component.
-        /// <remarks>A value usually ranging between -1 and 1.</remarks>
-        /// </summary>
-        public readonly float S;
-
         /// <summary>
         /// Initializes a new instance of the <see cref="Lms"/> struct.
         /// </summary>
@@ -57,6 +39,24 @@ namespace SixLabors.ImageSharp.ColorSpaces
             this.S = vector.Z;
         }
 
+        /// <summary>
+        /// Gets the L long component.
+        /// <remarks>A value usually ranging between -1 and 1.</remarks>
+        /// </summary>
+        public readonly float L { get; }
+
+        /// <summary>
+        /// Gets the M medium component.
+        /// <remarks>A value usually ranging between -1 and 1.</remarks>
+        /// </summary>
+        public readonly float M { get; }
+
+        /// <summary>
+        /// Gets the S short component.
+        /// <remarks>A value usually ranging between -1 and 1.</remarks>
+        /// </summary>
+        public readonly float S { get; }
+
         /// <summary>
         /// Compares two <see cref="Lms"/> objects for equality.
         /// </summary>
@@ -84,7 +84,7 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// </summary>
         /// <returns>The <see cref="Vector3"/>.</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Vector3 ToVector3() => new Vector3(this.L, this.M, this.S);
+        public Vector3 ToVector3() => new(this.L, this.M, this.S);
 
         /// <inheritdoc/>
         public override int GetHashCode() => HashCode.Combine(this.L, this.M, this.S);
@@ -98,10 +98,8 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
         public bool Equals(Lms other)
-        {
-            return this.L.Equals(other.L)
-                && this.M.Equals(other.M)
-                && this.S.Equals(other.S);
-        }
+            => this.L.Equals(other.L)
+            && this.M.Equals(other.M)
+            && this.S.Equals(other.S);
     }
 }

src/ImageSharp/ColorSpaces/Rgb.cs

@@ -22,29 +22,6 @@ namespace SixLabors.ImageSharp.ColorSpaces
         private static readonly Vector3 Min = Vector3.Zero;
         private static readonly Vector3 Max = Vector3.One;
 
-        /// <summary>
-        /// Gets the red component.
-        /// <remarks>A value usually ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float R;
-
-        /// <summary>
-        /// Gets the green component.
-        /// <remarks>A value usually ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float G;
-
-        /// <summary>
-        /// Gets the blue component.
-        /// <remarks>A value usually ranging between 0 and 1.</remarks>
-        /// </summary>
-        public readonly float B;
-
-        /// <summary>
-        /// Gets the Rgb color space <seealso cref="RgbWorkingSpaces"/>
-        /// </summary>
-        public readonly RgbWorkingSpace WorkingSpace;
-
         /// <summary>
         /// Initializes a new instance of the <see cref="Rgb"/> struct.
         /// </summary>
@@ -95,6 +72,29 @@ namespace SixLabors.ImageSharp.ColorSpaces
             this.WorkingSpace = workingSpace;
         }
 
+        /// <summary>
+        /// Gets the red component.
+        /// <remarks>A value usually ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float R { get; }
+
+        /// <summary>
+        /// Gets the green component.
+        /// <remarks>A value usually ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float G { get; }
+
+        /// <summary>
+        /// Gets the blue component.
+        /// <remarks>A value usually ranging between 0 and 1.</remarks>
+        /// </summary>
+        public readonly float B { get; }
+
+        /// <summary>
+        /// Gets the Rgb color space <seealso cref="RgbWorkingSpaces"/>
+        /// </summary>
+        public readonly RgbWorkingSpace WorkingSpace { get; }
+
         /// <summary>
         /// Allows the implicit conversion of an instance of <see cref="Rgb24"/> to a
         /// <see cref="Rgb"/>.
@@ -102,7 +102,7 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <param name="color">The instance of <see cref="Rgba32"/> to convert.</param>
         /// <returns>An instance of <see cref="Rgb"/>.</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public static implicit operator Rgb(Rgb24 color) => new Rgb(color.R / 255F, color.G / 255F, color.B / 255F);
+        public static implicit operator Rgb(Rgb24 color) => new(color.R / 255F, color.G / 255F, color.B / 255F);
 
         /// <summary>
         /// Allows the implicit conversion of an instance of <see cref="Rgba32"/> to a
@@ -111,7 +111,7 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <param name="color">The instance of <see cref="Rgba32"/> to convert.</param>
         /// <returns>An instance of <see cref="Rgb"/>.</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public static implicit operator Rgb(Rgba32 color) => new Rgb(color.R / 255F, color.G / 255F, color.B / 255F);
+        public static implicit operator Rgb(Rgba32 color) => new(color.R / 255F, color.G / 255F, color.B / 255F);
 
         /// <summary>
         /// Compares two <see cref="Rgb"/> objects for equality.
@@ -144,7 +144,7 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// </summary>
         /// <returns>The <see cref="Vector3"/>.</returns>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public Vector3 ToVector3() => new Vector3(this.R, this.G, this.B);
+        public Vector3 ToVector3() => new(this.R, this.G, this.B);
 
         /// <inheritdoc/>
         public override int GetHashCode() => HashCode.Combine(this.R, this.G, this.B);
@@ -158,10 +158,8 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
         public bool Equals(Rgb other)
-        {
-            return this.R.Equals(other.R)
-                && this.G.Equals(other.G)
-                && this.B.Equals(other.B);
-        }
+            => this.R.Equals(other.R)
+            && this.G.Equals(other.G)
+            && this.B.Equals(other.B);
     }
 }

src/ImageSharp/ColorSpaces/YCbCr.cs

@@ -15,25 +15,7 @@ namespace SixLabors.ImageSharp.ColorSpaces
     public readonly struct YCbCr : IEquatable<YCbCr>
     {
         private static readonly Vector3 Min = Vector3.Zero;
-        private static readonly Vector3 Max = new Vector3(255);
-
-        /// <summary>
-        /// Gets the Y luminance component.
-        /// <remarks>A value ranging between 0 and 255.</remarks>
-        /// </summary>
-        public readonly float Y;
-
-        /// <summary>
-        /// Gets the Cb chroma component.
-        /// <remarks>A value ranging between 0 and 255.</remarks>
-        /// </summary>
-        public readonly float Cb;
-
-        /// <summary>
-        /// Gets the Cr chroma component.
-        /// <remarks>A value ranging between 0 and 255.</remarks>
-        /// </summary>
-        public readonly float Cr;
+        private static readonly Vector3 Max = new(255);
 
         /// <summary>
         /// Initializes a new instance of the <see cref="YCbCr"/> struct.
@@ -60,6 +42,24 @@ namespace SixLabors.ImageSharp.ColorSpaces
             this.Cr = vector.Z;
         }
 
+        /// <summary>
+        /// Gets the Y luminance component.
+        /// <remarks>A value ranging between 0 and 255.</remarks>
+        /// </summary>
+        public readonly float Y { get; }
+
+        /// <summary>
+        /// Gets the Cb chroma component.
+        /// <remarks>A value ranging between 0 and 255.</remarks>
+        /// </summary>
+        public readonly float Cb { get; }
+
+        /// <summary>
+        /// Gets the Cr chroma component.
+        /// <remarks>A value ranging between 0 and 255.</remarks>
+        /// </summary>
+        public readonly float Cr { get; }
+
         /// <summary>
         /// Compares two <see cref="YCbCr"/> objects for equality.
         /// </summary>
@@ -94,10 +94,8 @@ namespace SixLabors.ImageSharp.ColorSpaces
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
         public bool Equals(YCbCr other)
-        {
-            return this.Y.Equals(other.Y)
-                && this.Cb.Equals(other.Cb)
-                && this.Cr.Equals(other.Cr);
-        }
+            => this.Y.Equals(other.Y)
+            && this.Cb.Equals(other.Cb)
+            && this.Cr.Equals(other.Cr);
     }
 }

src/ImageSharp/Diagnostics/MemoryDiagnostics.cs

@@ -9,6 +9,7 @@ namespace SixLabors.ImageSharp.Diagnostics
     /// <summary>
     /// Represents the method to handle <see cref="MemoryDiagnostics.UndisposedAllocation"/>.
     /// </summary>
+    /// <param name="allocationStackTrace">The allocation stack trace.</param>
     public delegate void UndisposedAllocationDelegate(string allocationStackTrace);
 
     /// <summary>

src/ImageSharp/Formats/Bmp/BmpDecoderCore.cs

@@ -491,7 +491,7 @@ namespace SixLabors.ImageSharp.Formats.Bmp
                             int max = cmd[1];
                             int bytesToRead = (max + 1) / 2;
 
-                            var run = new byte[bytesToRead];
+                            byte[] run = new byte[bytesToRead];
 
                             this.stream.Read(run, 0, run.Length);
 
@@ -501,13 +501,11 @@ namespace SixLabors.ImageSharp.Formats.Bmp
                                 byte twoPixels = run[idx];
                                 if (i % 2 == 0)
                                 {
-                                    byte leftPixel = (byte)((twoPixels >> 4) & 0xF);
-                                    buffer[count++] = leftPixel;
+                                    buffer[count++] = (byte)((twoPixels >> 4) & 0xF);
                                 }
                                 else
                                 {
-                                    byte rightPixel = (byte)(twoPixels & 0xF);
-                                    buffer[count++] = rightPixel;
+                                    buffer[count++] = (byte)(twoPixels & 0xF);
                                     idx++;
                                 }
                             }
@@ -597,7 +595,7 @@ namespace SixLabors.ImageSharp.Formats.Bmp
                             // Take this number of bytes from the stream as uncompressed data.
                             int length = cmd[1];
 
-                            var run = new byte[length];
+                            byte[] run = new byte[length];
 
                             this.stream.Read(run, 0, run.Length);
 
@@ -676,7 +674,7 @@ namespace SixLabors.ImageSharp.Formats.Bmp
                             // Take this number of bytes from the stream as uncompressed data.
                             int length = cmd[1];
 
-                            var run = new byte[length * 3];
+                            byte[] run = new byte[length * 3];
 
                             this.stream.Read(run, 0, run.Length);
 
@@ -909,7 +907,7 @@ namespace SixLabors.ImageSharp.Formats.Bmp
                     int r = (redMaskBits == 5) ? GetBytesFrom5BitValue((temp & redMask) >> rightShiftRedMask) : GetBytesFrom6BitValue((temp & redMask) >> rightShiftRedMask);
                     int g = (greenMaskBits == 5) ? GetBytesFrom5BitValue((temp & greenMask) >> rightShiftGreenMask) : GetBytesFrom6BitValue((temp & greenMask) >> rightShiftGreenMask);
                     int b = (blueMaskBits == 5) ? GetBytesFrom5BitValue((temp & blueMask) >> rightShiftBlueMask) : GetBytesFrom6BitValue((temp & blueMask) >> rightShiftBlueMask);
-                    var rgb = new Rgb24((byte)r, (byte)g, (byte)b);
+                    Rgb24 rgb = new((byte)r, (byte)g, (byte)b);
 
                     color.FromRgb24(rgb);
                     pixelRow[x] = color;
@@ -1164,7 +1162,7 @@ namespace SixLabors.ImageSharp.Formats.Bmp
                         uint g = (uint)(temp & greenMask) >> rightShiftGreenMask;
                         uint b = (uint)(temp & blueMask) >> rightShiftBlueMask;
                         float alpha = alphaMask != 0 ? invMaxValueAlpha * ((uint)(temp & alphaMask) >> rightShiftAlphaMask) : 1.0f;
-                        var vector4 = new Vector4(
+                        Vector4 vector4 = new(
                             r * invMaxValueRed,
                             g * invMaxValueGreen,
                             b * invMaxValueBlue,
@@ -1246,7 +1244,7 @@ namespace SixLabors.ImageSharp.Formats.Bmp
             this.stream.Read(buffer, 0, BmpInfoHeader.HeaderSizeSize);
 
             int headerSize = BinaryPrimitives.ReadInt32LittleEndian(buffer);
-            if (headerSize < BmpInfoHeader.CoreSize || headerSize > BmpInfoHeader.MaxHeaderSize)
+            if (headerSize is < BmpInfoHeader.CoreSize or > BmpInfoHeader.MaxHeaderSize)
             {
                 BmpThrowHelper.ThrowNotSupportedException($"ImageSharp does not support this BMP file. HeaderSize is '{headerSize}'.");
             }
@@ -1277,7 +1275,7 @@ namespace SixLabors.ImageSharp.Formats.Bmp
                 // color masks for each color channel follow the info header.
                 if (this.infoHeader.Compression == BmpCompression.BitFields)
                 {
-                    var bitfieldsBuffer = new byte[12];
+                    byte[] bitfieldsBuffer = new byte[12];
                     this.stream.Read(bitfieldsBuffer, 0, 12);
                     Span<byte> data = bitfieldsBuffer.AsSpan();
                     this.infoHeader.RedMask = BinaryPrimitives.ReadInt32LittleEndian(data[..4]);
@@ -1286,7 +1284,7 @@ namespace SixLabors.ImageSharp.Formats.Bmp
                 }
                 else if (this.infoHeader.Compression == BmpCompression.BI_ALPHABITFIELDS)
                 {
-                    var bitfieldsBuffer = new byte[16];
+                    byte[] bitfieldsBuffer = new byte[16];
                     this.stream.Read(bitfieldsBuffer, 0, 16);
                     Span<byte> data = bitfieldsBuffer.AsSpan();
                     this.infoHeader.RedMask = BinaryPrimitives.ReadInt32LittleEndian(data[..4]);
@@ -1396,6 +1394,9 @@ namespace SixLabors.ImageSharp.Formats.Bmp
         /// <summary>
         /// Reads the <see cref="BmpFileHeader"/> and <see cref="BmpInfoHeader"/> from the stream and sets the corresponding fields.
         /// </summary>
+        /// <param name="stream">The input stream.</param>
+        /// <param name="inverted">Whether the image orientation is inverted.</param>
+        /// <param name="palette">The color palette.</param>
         /// <returns>Bytes per color palette entry. Usually 4 bytes, but in case of Windows 2.x bitmaps or OS/2 1.x bitmaps
         /// the bytes per color palette entry's can be 3 bytes instead of 4.</returns>
         private int ReadImageHeaders(BufferedReadStream stream, out bool inverted, out byte[] palette)

src/ImageSharp/Formats/Bmp/BmpEncoderCore.cs

@@ -160,10 +160,10 @@ namespace SixLabors.ImageSharp.Formats.Bmp
 
             Span<byte> buffer = stackalloc byte[infoHeaderSize];
 
-            this.WriteBitmapFileHeader(stream, infoHeaderSize, colorPaletteSize, iccProfileSize, infoHeader, buffer);
+            WriteBitmapFileHeader(stream, infoHeaderSize, colorPaletteSize, iccProfileSize, infoHeader, buffer);
             this.WriteBitmapInfoHeader(stream, infoHeader, buffer, infoHeaderSize);
             this.WriteImage(stream, image.Frames.RootFrame);
-            this.WriteColorProfile(stream, iccProfileData, buffer);
+            WriteColorProfile(stream, iccProfileData, buffer);
 
             stream.Flush();
         }
@@ -184,34 +184,33 @@ namespace SixLabors.ImageSharp.Formats.Bmp
             int hResolution = 0;
             int vResolution = 0;
 
-            if (metadata.ResolutionUnits != PixelResolutionUnit.AspectRatio)
+            if (metadata.ResolutionUnits != PixelResolutionUnit.AspectRatio
+                && metadata.HorizontalResolution > 0
+                && metadata.VerticalResolution > 0)
             {
-                if (metadata.HorizontalResolution > 0 && metadata.VerticalResolution > 0)
+                switch (metadata.ResolutionUnits)
                 {
-                    switch (metadata.ResolutionUnits)
-                    {
-                        case PixelResolutionUnit.PixelsPerInch:
+                    case PixelResolutionUnit.PixelsPerInch:
 
-                            hResolution = (int)Math.Round(UnitConverter.InchToMeter(metadata.HorizontalResolution));
-                            vResolution = (int)Math.Round(UnitConverter.InchToMeter(metadata.VerticalResolution));
-                            break;
+                        hResolution = (int)Math.Round(UnitConverter.InchToMeter(metadata.HorizontalResolution));
+                        vResolution = (int)Math.Round(UnitConverter.InchToMeter(metadata.VerticalResolution));
+                        break;
 
-                        case PixelResolutionUnit.PixelsPerCentimeter:
+                    case PixelResolutionUnit.PixelsPerCentimeter:
 
-                            hResolution = (int)Math.Round(UnitConverter.CmToMeter(metadata.HorizontalResolution));
-                            vResolution = (int)Math.Round(UnitConverter.CmToMeter(metadata.VerticalResolution));
-                            break;
+                        hResolution = (int)Math.Round(UnitConverter.CmToMeter(metadata.HorizontalResolution));
+                        vResolution = (int)Math.Round(UnitConverter.CmToMeter(metadata.VerticalResolution));
+                        break;
 
-                        case PixelResolutionUnit.PixelsPerMeter:
-                            hResolution = (int)Math.Round(metadata.HorizontalResolution);
-                            vResolution = (int)Math.Round(metadata.VerticalResolution);
+                    case PixelResolutionUnit.PixelsPerMeter:
+                        hResolution = (int)Math.Round(metadata.HorizontalResolution);
+                        vResolution = (int)Math.Round(metadata.VerticalResolution);
 
-                            break;
-                    }
+                        break;
                 }
             }
 
-            var infoHeader = new BmpInfoHeader(
+            BmpInfoHeader infoHeader = new(
                 headerSize: infoHeaderSize,
                 height: height,
                 width: width,
@@ -248,7 +247,7 @@ namespace SixLabors.ImageSharp.Formats.Bmp
         /// <param name="stream">The stream to write to.</param>
         /// <param name="iccProfileData">The color profile data.</param>
         /// <param name="buffer">The buffer.</param>
-        private void WriteColorProfile(Stream stream, byte[] iccProfileData, Span<byte> buffer)
+        private static void WriteColorProfile(Stream stream, byte[] iccProfileData, Span<byte> buffer)
         {
             if (iccProfileData != null)
             {
@@ -270,9 +269,9 @@ namespace SixLabors.ImageSharp.Formats.Bmp
         /// <param name="iccProfileSize">The size in bytes of the color profile.</param>
         /// <param name="infoHeader">The information header to write.</param>
         /// <param name="buffer">The buffer to write to.</param>
-        private void WriteBitmapFileHeader(Stream stream, int infoHeaderSize, int colorPaletteSize, int iccProfileSize, BmpInfoHeader infoHeader, Span<byte> buffer)
+        private static void WriteBitmapFileHeader(Stream stream, int infoHeaderSize, int colorPaletteSize, int iccProfileSize, BmpInfoHeader infoHeader, Span<byte> buffer)
         {
-            var fileHeader = new BmpFileHeader(
+            BmpFileHeader fileHeader = new(
                 type: BmpConstants.TypeMarkers.Bitmap,
                 fileSize: BmpFileHeader.Size + infoHeaderSize + colorPaletteSize + iccProfileSize + infoHeader.ImageSize,
                 reserved: 0,
@@ -555,7 +554,7 @@ namespace SixLabors.ImageSharp.Formats.Bmp
 
                 if (pixelRowSpan.Length % 2 != 0)
                 {
-                    stream.WriteByte((byte)((pixelRowSpan[pixelRowSpan.Length - 1] << 4) | 0));
+                    stream.WriteByte((byte)((pixelRowSpan[^1] << 4) | 0));
                 }
 
                 for (int i = 0; i < rowPadding; i++)

src/ImageSharp/Formats/Bmp/BmpInfoHeader.cs

@@ -382,18 +382,16 @@ namespace SixLabors.ImageSharp.Formats.Bmp
         /// <seealso href="https://www.fileformat.info/format/os2bmp/egff.htm"/>
         public static BmpInfoHeader ParseOs2Version2(ReadOnlySpan<byte> data)
         {
-            var infoHeader = new BmpInfoHeader(
+            BmpInfoHeader infoHeader = new(
                 headerSize: BinaryPrimitives.ReadInt32LittleEndian(data[..4]),
                 width: BinaryPrimitives.ReadInt32LittleEndian(data.Slice(4, 4)),
                 height: BinaryPrimitives.ReadInt32LittleEndian(data.Slice(8, 4)),
                 planes: BinaryPrimitives.ReadInt16LittleEndian(data.Slice(12, 2)),
                 bitsPerPixel: BinaryPrimitives.ReadInt16LittleEndian(data.Slice(14, 2)));
 
-            int compression = BinaryPrimitives.ReadInt32LittleEndian(data.Slice(16, 4));
-
             // The compression value in OS/2 bitmap has a different meaning than in windows bitmaps.
             // Map the OS/2 value to the windows values.
-            switch (compression)
+            switch (BinaryPrimitives.ReadInt32LittleEndian(data.Slice(16, 4)))
             {
                 case 0:
                     infoHeader.Compression = BmpCompression.RGB;
@@ -465,11 +463,12 @@ namespace SixLabors.ImageSharp.Formats.Bmp
         /// <param name="data">The data to parse.</param>
         /// <returns>The parsed header.</returns>
         /// <seealso href="https://docs.microsoft.com/de-de/windows/win32/api/wingdi/ns-wingdi-bitmapv5header?redirectedfrom=MSDN"/>
+        /// <exception cref="ArgumentException">Invalid size.</exception>
         public static BmpInfoHeader ParseV5(ReadOnlySpan<byte> data)
         {
             if (data.Length < SizeV5)
             {
-                throw new ArgumentException(nameof(data), $"Must be {SizeV5} bytes. Was {data.Length} bytes.");
+                throw new ArgumentException($"Must be {SizeV5} bytes. Was {data.Length} bytes.", nameof(data));
             }
 
             return MemoryMarshal.Cast<byte, BmpInfoHeader>(data)[0];
@@ -545,13 +544,13 @@ namespace SixLabors.ImageSharp.Formats.Bmp
 
         internal void VerifyDimensions()
         {
-            const int MaximumBmpDimension = 65535;
+            const int maximumBmpDimension = 65535;
 
-            if (this.Width > MaximumBmpDimension || this.Height > MaximumBmpDimension)
+            if (this.Width > maximumBmpDimension || this.Height > maximumBmpDimension)
             {
                 throw new InvalidOperationException(
                     $"The input bmp '{this.Width}x{this.Height}' is "
-                    + $"bigger then the max allowed size '{MaximumBmpDimension}x{MaximumBmpDimension}'");
+                    + $"bigger then the max allowed size '{maximumBmpDimension}x{maximumBmpDimension}'");
             }
         }
     }

src/ImageSharp/Formats/DecoderOptions.cs

@@ -29,7 +29,7 @@ namespace SixLabors.ImageSharp.Formats
         /// <summary>
         /// Gets or sets the target size to decode the image into.
         /// </summary>
-        public Size? TargetSize { get; set; } = null;
+        public Size? TargetSize { get; set; }
 
         /// <summary>
         /// Gets or sets the sampler to use when resizing during decoding.
@@ -39,7 +39,7 @@ namespace SixLabors.ImageSharp.Formats
         /// <summary>
         /// Gets or sets a value indicating whether to ignore encoded metadata when decoding.
         /// </summary>
-        public bool SkipMetadata { get; set; } = false;
+        public bool SkipMetadata { get; set; }
 
         /// <summary>
         /// Gets or sets the maximum number of image frames to decode, inclusive.

src/ImageSharp/Formats/Gif/GifEncoderCore.cs

@@ -108,10 +108,10 @@ namespace SixLabors.ImageSharp.Formats.Gif
             this.bitDepth = ColorNumerics.GetBitsNeededForColorDepth(quantized.Palette.Length);
 
             // Write the header.
-            this.WriteHeader(stream);
+            WriteHeader(stream);
 
             // Write the LSD.
-            int index = this.GetTransparentIndex(quantized);
+            int index = GetTransparentIndex(quantized);
             this.WriteLogicalScreenDescriptor(metadata, image.Width, image.Height, index, useGlobalTable, stream);
 
             if (useGlobalTable)
@@ -193,7 +193,7 @@ namespace SixLabors.ImageSharp.Formats.Gif
                     if (previousFrame != null && previousMeta.ColorTableLength != frameMetadata.ColorTableLength
                                               && frameMetadata.ColorTableLength > 0)
                     {
-                        var options = new QuantizerOptions
+                        QuantizerOptions options = new()
                         {
                             Dither = this.quantizer.Options.Dither,
                             DitherScale = this.quantizer.Options.DitherScale,
@@ -211,7 +211,7 @@ namespace SixLabors.ImageSharp.Formats.Gif
                 }
 
                 this.bitDepth = ColorNumerics.GetBitsNeededForColorDepth(quantized.Palette.Length);
-                this.WriteGraphicalControlExtension(frameMetadata, this.GetTransparentIndex(quantized), stream);
+                this.WriteGraphicalControlExtension(frameMetadata, GetTransparentIndex(quantized), stream);
                 this.WriteImageDescriptor(frame, true, stream);
                 this.WriteColorTable(quantized, stream);
                 this.WriteImageData(quantized, stream);
@@ -231,7 +231,7 @@ namespace SixLabors.ImageSharp.Formats.Gif
         /// <returns>
         /// The <see cref="int"/>.
         /// </returns>
-        private int GetTransparentIndex<TPixel>(IndexedImageFrame<TPixel> quantized)
+        private static int GetTransparentIndex<TPixel>(IndexedImageFrame<TPixel> quantized)
             where TPixel : unmanaged, IPixel<TPixel>
         {
             // Transparent pixels are much more likely to be found at the end of a palette.
@@ -259,7 +259,7 @@ namespace SixLabors.ImageSharp.Formats.Gif
         /// </summary>
         /// <param name="stream">The stream to write to.</param>
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private void WriteHeader(Stream stream) => stream.Write(GifConstants.MagicNumber);
+        private static void WriteHeader(Stream stream) => stream.Write(GifConstants.MagicNumber);
 
         /// <summary>
         /// Writes the logical screen descriptor to the stream.
@@ -308,7 +308,7 @@ namespace SixLabors.ImageSharp.Formats.Gif
                 }
             }
 
-            var descriptor = new GifLogicalScreenDescriptor(
+            GifLogicalScreenDescriptor descriptor = new(
                 width: (ushort)width,
                 height: (ushort)height,
                 packed: packedValue,
@@ -332,14 +332,14 @@ namespace SixLabors.ImageSharp.Formats.Gif
             // Application Extension: Loop repeat count.
             if (frameCount > 1 && repeatCount != 1)
             {
-                var loopingExtension = new GifNetscapeLoopingApplicationExtension(repeatCount);
+                GifNetscapeLoopingApplicationExtension loopingExtension = new(repeatCount);
                 this.WriteExtension(loopingExtension, stream);
             }
 
             // Application Extension: XMP Profile.
             if (xmpProfile != null)
             {
-                var xmpExtension = new GifXmpApplicationExtension(xmpProfile.Data);
+                GifXmpApplicationExtension xmpExtension = new(xmpProfile.Data);
                 this.WriteExtension(xmpExtension, stream);
             }
         }
@@ -411,7 +411,7 @@ namespace SixLabors.ImageSharp.Formats.Gif
                 disposalMethod: metadata.DisposalMethod,
                 transparencyFlag: transparencyIndex > -1);
 
-            var extension = new GifGraphicControlExtension(
+            GifGraphicControlExtension extension = new(
                 packed: packedValue,
                 delayTime: (ushort)metadata.FrameDelay,
                 transparencyIndex: unchecked((byte)transparencyIndex));
@@ -422,6 +422,7 @@ namespace SixLabors.ImageSharp.Formats.Gif
         /// <summary>
         /// Writes the provided extension to the stream.
         /// </summary>
+        /// <typeparam name="TGifExtension">The type of gif extension.</typeparam>
         /// <param name="extension">The extension to write to the stream.</param>
         /// <param name="stream">The stream to write to.</param>
         private void WriteExtension<TGifExtension>(TGifExtension extension, Stream stream)
@@ -472,7 +473,7 @@ namespace SixLabors.ImageSharp.Formats.Gif
                 sortFlag: false,
                 localColorTableSize: this.bitDepth - 1);
 
-            var descriptor = new GifImageDescriptor(
+            GifImageDescriptor descriptor = new(
                 left: 0,
                 top: 0,
                 width: (ushort)image.Width,
@@ -517,7 +518,7 @@ namespace SixLabors.ImageSharp.Formats.Gif
         private void WriteImageData<TPixel>(IndexedImageFrame<TPixel> image, Stream stream)
             where TPixel : unmanaged, IPixel<TPixel>
         {
-            using var encoder = new LzwEncoder(this.memoryAllocator, (byte)this.bitDepth);
+            using LzwEncoder encoder = new(this.memoryAllocator, (byte)this.bitDepth);
             encoder.Encode(((IPixelSource)image).PixelBuffer, stream);
         }
     }

src/ImageSharp/Formats/Jpeg/Components/Block8x8F.cs

@@ -161,7 +161,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
         {
             if (Avx.IsSupported)
             {
-                var valueVec = Vector256.Create(value);
+                Vector256<float> valueVec = Vector256.Create(value);
                 this.V0 = Avx.Multiply(this.V0, valueVec);
                 this.V1 = Avx.Multiply(this.V1, valueVec);
                 this.V2 = Avx.Multiply(this.V2, valueVec);
@@ -173,7 +173,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
             }
             else
             {
-                var valueVec = new Vector4(value);
+                Vector4 valueVec = new(value);
                 this.V0L *= valueVec;
                 this.V0R *= valueVec;
                 this.V1L *= valueVec;
@@ -196,6 +196,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
         /// <summary>
         /// Multiply all elements of the block by the corresponding elements of 'other'.
         /// </summary>
+        /// <param name="other">The other block.</param>
         [MethodImpl(InliningOptions.ShortMethod)]
         public unsafe void MultiplyInPlace(ref Block8x8F other)
         {
@@ -240,7 +241,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
         {
             if (Avx.IsSupported)
             {
-                var valueVec = Vector256.Create(value);
+                Vector256<float> valueVec = Vector256.Create(value);
                 this.V0 = Avx.Add(this.V0, valueVec);
                 this.V1 = Avx.Add(this.V1, valueVec);
                 this.V2 = Avx.Add(this.V2, valueVec);
@@ -252,7 +253,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
             }
             else
             {
-                var valueVec = new Vector4(value);
+                Vector4 valueVec = new(value);
                 this.V0L += valueVec;
                 this.V0R += valueVec;
                 this.V1L += valueVec;
@@ -330,6 +331,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
         /// <summary>
         /// Level shift by +maximum/2, clip to [0..maximum], and round all the values in the block.
         /// </summary>
+        /// <param name="maximum">The maximum value.</param>
         public void NormalizeColorsAndRoundInPlace(float maximum)
         {
             if (SimdUtils.HasVector8)
@@ -421,7 +423,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
             {
                 const int equalityMask = unchecked((int)0b1111_1111_1111_1111_1111_1111_1111_1111);
 
-                var targetVector = Vector256.Create(value);
+                Vector256<int> targetVector = Vector256.Create(value);
                 ref Vector256<float> blockStride = ref this.V0;
 
                 for (int i = 0; i < RowCount; i++)
@@ -468,20 +470,46 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
             && this.V7L == other.V7L
             && this.V7R == other.V7R;
 
+        /// <inheritdoc />
+        public override bool Equals(object obj) => this.Equals((Block8x8F)obj);
+
+        /// <inheritdoc />
+        public override int GetHashCode()
+        {
+            int left = HashCode.Combine(
+                this.V0L,
+                this.V1L,
+                this.V2L,
+                this.V3L,
+                this.V4L,
+                this.V5L,
+                this.V6L,
+                this.V7L);
+
+            int right = HashCode.Combine(
+                this.V0R,
+                this.V1R,
+                this.V2R,
+                this.V3R,
+                this.V4R,
+                this.V5R,
+                this.V6R,
+                this.V7R);
+
+            return HashCode.Combine(left, right);
+        }
+
         /// <inheritdoc />
         public override string ToString()
         {
-            var sb = new StringBuilder();
+            StringBuilder sb = new();
             sb.Append('[');
             for (int i = 0; i < Size - 1; i++)
             {
-                sb.Append(this[i]);
-                sb.Append(',');
+                sb.Append(this[i]).Append(',');
             }
 
-            sb.Append(this[Size - 1]);
-
-            sb.Append(']');
+            sb.Append(this[Size - 1]).Append(']');
             return sb.ToString();
         }
 

src/ImageSharp/Formats/Jpeg/Components/ColorConverters/JpegColorConverterBase.cs

@@ -20,6 +20,8 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
         /// <summary>
         /// Initializes a new instance of the <see cref="JpegColorConverterBase"/> class.
         /// </summary>
+        /// <param name="colorSpace">The color space.</param>
+        /// <param name="precision">The precision in bits.</param>
         protected JpegColorConverterBase(JpegColorSpace colorSpace, int precision)
         {
             this.ColorSpace = colorSpace;
@@ -66,6 +68,9 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
         /// <summary>
         /// Returns the <see cref="JpegColorConverterBase"/> corresponding to the given <see cref="JpegColorSpace"/>
         /// </summary>
+        /// <param name="colorSpace">The color space.</param>
+        /// <param name="precision">The precision in bits.</param>
+        /// <exception cref="InvalidImageContentException">Invalid colorspace.</exception>
         public static JpegColorConverterBase GetConverter(JpegColorSpace colorSpace, int precision)
         {
             JpegColorConverterBase converter = Array.Find(
@@ -75,7 +80,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
 
             if (converter is null)
             {
-                throw new Exception($"Could not find any converter for JpegColorSpace {colorSpace}!");
+                throw new InvalidImageContentException($"Could not find any converter for JpegColorSpace {colorSpace}!");
             }
 
             return converter;
@@ -104,7 +109,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
             // 5 color types with 2 supported precisions: 8 bit & 12 bit
             const int colorConvertersCount = 5 * 2;
 
-            var converters = new JpegColorConverterBase[colorConvertersCount];
+            JpegColorConverterBase[] converters = new JpegColorConverterBase[colorConvertersCount];
 
             // 8-bit converters
             converters[0] = GetYCbCrConverter(8);
@@ -126,6 +131,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
         /// <summary>
         /// Returns the <see cref="JpegColorConverterBase"/>s for the YCbCr colorspace.
         /// </summary>
+        /// <param name="precision">The precision in bits.</param>
         private static JpegColorConverterBase GetYCbCrConverter(int precision)
         {
             if (JpegColorConverterAvx.IsSupported)
@@ -144,6 +150,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
         /// <summary>
         /// Returns the <see cref="JpegColorConverterBase"/>s for the YccK colorspace.
         /// </summary>
+        /// <param name="precision">The precision in bits.</param>
         private static JpegColorConverterBase GetYccKConverter(int precision)
         {
             if (JpegColorConverterAvx.IsSupported)
@@ -162,6 +169,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
         /// <summary>
         /// Returns the <see cref="JpegColorConverterBase"/>s for the CMYK colorspace.
         /// </summary>
+        /// <param name="precision">The precision in bits.</param>
         private static JpegColorConverterBase GetCmykConverter(int precision)
         {
             if (JpegColorConverterAvx.IsSupported)
@@ -180,6 +188,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
         /// <summary>
         /// Returns the <see cref="JpegColorConverterBase"/>s for the gray scale colorspace.
         /// </summary>
+        /// <param name="precision">The precision in bits.</param>
         private static JpegColorConverterBase GetGrayScaleConverter(int precision)
         {
             if (JpegColorConverterAvx.IsSupported)
@@ -198,6 +207,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
         /// <summary>
         /// Returns the <see cref="JpegColorConverterBase"/>s for the RGB colorspace.
         /// </summary>
+        /// <param name="precision">The precision in bits.</param>
         private static JpegColorConverterBase GetRgbConverter(int precision)
         {
             if (JpegColorConverterAvx.IsSupported)

src/ImageSharp/Formats/Jpeg/Components/Decoder/ArithmeticScanDecoder.cs

@@ -225,10 +225,10 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
         {
             for (int i = 0; i < this.components.Length; i++)
             {
-                var component = this.components[i] as ArithmeticDecodingComponent;
-                this.dcDecodingTables[i] = this.GetArithmeticTable(arithmeticDecodingTables, true, component.DcTableId);
+                ArithmeticDecodingComponent component = this.components[i] as ArithmeticDecodingComponent;
+                this.dcDecodingTables[i] = GetArithmeticTable(arithmeticDecodingTables, true, component.DcTableId);
                 component.DcStatistics = this.CreateOrGetStatisticsBin(true, component.DcTableId);
-                this.acDecodingTables[i] = this.GetArithmeticTable(arithmeticDecodingTables, false, component.AcTableId);
+                this.acDecodingTables[i] = GetArithmeticTable(arithmeticDecodingTables, false, component.AcTableId);
                 component.AcStatistics = this.CreateOrGetStatisticsBin(false, component.AcTableId);
             }
         }
@@ -276,7 +276,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
             this.spectralConverter.InjectFrameData(frame, jpegData);
         }
 
-        private ArithmeticDecodingTable GetArithmeticTable(List<ArithmeticDecodingTable> arithmeticDecodingTables, bool isDcTable, int identifier)
+        private static ArithmeticDecodingTable GetArithmeticTable(List<ArithmeticDecodingTable> arithmeticDecodingTables, bool isDcTable, int identifier)
         {
             int tableClass = isDcTable ? 0 : 1;
 
@@ -306,15 +306,16 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
                 }
             }
 
-            var statistic = new ArithmeticStatistics(dc, identifier);
+            ArithmeticStatistics statistic = new(dc, identifier);
             this.statistics.Add(statistic);
             return statistic;
         }
 
         private void ParseBaselineData()
         {
-            foreach (ArithmeticDecodingComponent component in this.components)
+            for (int i = 0; i < this.components.Length; i++)
             {
+                ArithmeticDecodingComponent component = (ArithmeticDecodingComponent)this.components[i];
                 component.DcPredictor = 0;
                 component.DcContext = 0;
                 component.DcStatistics?.Reset();
@@ -441,7 +442,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
                     for (int k = 0; k < this.scanComponentCount; k++)
                     {
                         int order = this.frame.ComponentOrder[k];
-                        var component = this.components[order] as ArithmeticDecodingComponent;
+                        ArithmeticDecodingComponent component = this.components[order] as ArithmeticDecodingComponent;
 
                         ref ArithmeticDecodingTable dcDecodingTable = ref this.dcDecodingTables[component.DcTableId];
                         ref ArithmeticDecodingTable acDecodingTable = ref this.acDecodingTables[component.AcTableId];
@@ -491,7 +492,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
 
         private void ParseBaselineDataSingleComponent()
         {
-            var component = this.frame.Components[0] as ArithmeticDecodingComponent;
+            ArithmeticDecodingComponent component = this.frame.Components[0] as ArithmeticDecodingComponent;
             int mcuLines = this.frame.McusPerColumn;
             int w = component.WidthInBlocks;
             int h = component.SamplingFactors.Height;
@@ -537,7 +538,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
 
         private void ParseBaselineDataNonInterleaved()
         {
-            var component = (ArithmeticDecodingComponent)this.components[this.frame.ComponentOrder[0]];
+            ArithmeticDecodingComponent component = (ArithmeticDecodingComponent)this.components[this.frame.ComponentOrder[0]];
             ref JpegBitReader reader = ref this.scanBuffer;
 
             int w = component.WidthInBlocks;
@@ -586,7 +587,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
                     for (int k = 0; k < this.scanComponentCount; k++)
                     {
                         int order = this.frame.ComponentOrder[k];
-                        var component = this.components[order] as ArithmeticDecodingComponent;
+                        ArithmeticDecodingComponent component = this.components[order] as ArithmeticDecodingComponent;
                         ref ArithmeticDecodingTable dcDecodingTable = ref this.dcDecodingTables[component.DcTableId];
 
                         int h = component.HorizontalSamplingFactor;
@@ -628,7 +629,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
 
         private void ParseProgressiveDataNonInterleaved()
         {
-            var component = this.components[this.frame.ComponentOrder[0]] as ArithmeticDecodingComponent;
+            ArithmeticDecodingComponent component = this.components[this.frame.ComponentOrder[0]] as ArithmeticDecodingComponent;
             ref JpegBitReader reader = ref this.scanBuffer;
 
             int w = component.WidthInBlocks;
@@ -1140,7 +1141,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
         {
             for (int i = 0; i < this.components.Length; i++)
             {
-                var component = this.components[i] as ArithmeticDecodingComponent;
+                ArithmeticDecodingComponent component = this.components[i] as ArithmeticDecodingComponent;
                 component.DcPredictor = 0;
             }
 

src/ImageSharp/Formats/Jpeg/Components/Decoder/JpegFileMarker.cs

@@ -1,6 +1,7 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
+using System.Globalization;
 using System.Runtime.CompilerServices;
 
 namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
@@ -62,8 +63,6 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Decoder
 
         /// <inheritdoc/>
         public override string ToString()
-        {
-            return this.Marker.ToString("X");
-        }
+            => this.Marker.ToString("X", CultureInfo.InvariantCulture);
     }
 }

src/ImageSharp/Formats/Jpeg/Components/Encoder/EncodingConfigs/JpegFrameConfig.cs

@@ -39,6 +39,6 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder
 
         public int MaxVerticalSamplingFactor { get; }
 
-        public byte? AdobeColorTransformMarkerFlag { get; set; } = null;
+        public byte? AdobeColorTransformMarkerFlag { get; set; }
     }
 }

src/ImageSharp/Formats/Jpeg/Components/Encoder/HuffmanSpec.cs

@@ -122,16 +122,6 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder
                 0xf9, 0xfa
             });
 
-        /// <summary>
-        ///     Gets count[i] - The number of codes of length i bits.
-        /// </summary>
-        public readonly byte[] Count;
-
-        /// <summary>
-        ///     Gets value[i] - The decoded value of the codeword at the given index.
-        /// </summary>
-        public readonly byte[] Values;
-
         /// <summary>
         /// Initializes a new instance of the <see cref="HuffmanSpec"/> struct.
         /// </summary>
@@ -146,5 +136,15 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components.Encoder
             this.Count = count;
             this.Values = values;
         }
+
+        /// <summary>
+        /// Gets the count[i] - The number of codes of length i bits.
+        /// </summary>
+        public readonly byte[] Count { get; }
+
+        /// <summary>
+        /// Gets the value[i] - The decoded value of the codeword at the given index.
+        /// </summary>
+        public readonly byte[] Values { get; }
     }
 }

src/ImageSharp/Formats/Jpeg/Components/RowOctet.cs

@@ -11,6 +11,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
     /// <summary>
     /// Cache 8 pixel rows on the stack, which may originate from different buffers of a <see cref="MemoryGroup{T}"/>.
     /// </summary>
+    /// <typeparam name="T">The type of element in each row.</typeparam>
     [StructLayout(LayoutKind.Sequential)]
     internal ref struct RowOctet<T>
         where T : struct
@@ -92,6 +93,8 @@ namespace SixLabors.ImageSharp.Formats.Jpeg.Components
 
         [MethodImpl(MethodImplOptions.NoInlining)]
         private static Span<T> ThrowIndexOutOfRangeException()
+#pragma warning disable CA2201 // Do not raise reserved exception types
         => throw new IndexOutOfRangeException();
+#pragma warning restore CA2201 // Do not raise reserved exception types
     }
 }

src/ImageSharp/Formats/Jpeg/JpegDecoderCore.cs

@@ -213,7 +213,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
         public Image<TPixel> Decode<TPixel>(BufferedReadStream stream, CancellationToken cancellationToken)
             where TPixel : unmanaged, IPixel<TPixel>
         {
-            using var spectralConverter = new SpectralConverter<TPixel>(this.configuration, this.resizeMode == JpegDecoderResizeMode.ScaleOnly ? null : this.Options.TargetSize);
+            using SpectralConverter<TPixel> spectralConverter = new(this.configuration, this.resizeMode == JpegDecoderResizeMode.ScaleOnly ? null : this.Options.TargetSize);
             this.ParseStream(stream, spectralConverter, cancellationToken);
             this.InitExifProfile();
             this.InitIccProfile();
@@ -257,12 +257,12 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
                 JpegThrowHelper.ThrowInvalidImageContentException("Not enough data to read marker");
             }
 
-            using var ms = new MemoryStream(tableBytes);
-            using var stream = new BufferedReadStream(this.configuration, ms);
+            using MemoryStream ms = new(tableBytes);
+            using BufferedReadStream stream = new(this.configuration, ms);
 
             // Check for the Start Of Image marker.
             int bytesRead = stream.Read(this.markerBuffer, 0, 2);
-            var fileMarker = new JpegFileMarker(this.markerBuffer[1], 0);
+            JpegFileMarker fileMarker = new(this.markerBuffer[1], 0);
             if (fileMarker.Marker != JpegConstants.Markers.SOI)
             {
                 JpegThrowHelper.ThrowInvalidImageContentException("Missing SOI marker.");
@@ -290,7 +290,6 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
                     switch (fileMarker.Marker)
                     {
                         case JpegConstants.Markers.SOI:
-                            break;
                         case JpegConstants.Markers.RST0:
                         case JpegConstants.Markers.RST7:
                             break;
@@ -335,7 +334,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
 
             // Check for the Start Of Image marker.
             stream.Read(this.markerBuffer, 0, 2);
-            var fileMarker = new JpegFileMarker(this.markerBuffer[1], 0);
+            JpegFileMarker fileMarker = new(this.markerBuffer[1], 0);
             if (fileMarker.Marker != JpegConstants.Markers.SOI)
             {
                 JpegThrowHelper.ThrowInvalidImageContentException("Missing SOI marker.");
@@ -409,12 +408,10 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
                                 this.ProcessStartOfScanMarker(stream, markerContentByteSize);
                                 break;
                             }
-                            else
-                            {
-                                // It's highly unlikely that APPn related data will be found after the SOS marker
-                                // We should have gathered everything we need by now.
-                                return;
-                            }
+
+                            // It's highly unlikely that APPn related data will be found after the SOS marker
+                            // We should have gathered everything we need by now.
+                            return;
 
                         case JpegConstants.Markers.DHT:
 
@@ -654,7 +651,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
         {
             if (this.hasIcc)
             {
-                var profile = new IccProfile(this.iccData);
+                IccProfile profile = new(this.iccData);
                 if (profile.CheckIsValid())
                 {
                     this.Metadata.IccProfile = profile;
@@ -669,8 +666,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
         {
             if (this.hasIptc)
             {
-                var profile = new IptcProfile(this.iptcData);
-                this.Metadata.IptcProfile = profile;
+                this.Metadata.IptcProfile = new IptcProfile(this.iptcData);
             }
         }
 
@@ -681,8 +677,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
         {
             if (this.hasXmp)
             {
-                var profile = new XmpProfile(this.xmpData);
-                this.Metadata.XmpProfile = profile;
+                this.Metadata.XmpProfile = new XmpProfile(this.xmpData);
             }
         }
 
@@ -723,7 +718,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
         /// </summary>
         /// <param name="profile">The profile data array.</param>
         /// <param name="extension">The array containing addition profile data.</param>
-        private void ExtendProfile(ref byte[] profile, byte[] extension)
+        private static void ExtendProfile(ref byte[] profile, byte[] extension)
         {
             int currentLength = profile.Length;
 
@@ -751,7 +746,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
             stream.Read(this.temp, 0, JFifMarker.Length);
             remaining -= JFifMarker.Length;
 
-            JFifMarker.TryParse(this.temp, out this.jFif);
+            _ = JFifMarker.TryParse(this.temp, out this.jFif);
 
             // TODO: thumbnail
             if (remaining > 0)
@@ -772,9 +767,9 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
         /// <param name="remaining">The remaining bytes in the segment block.</param>
         private void ProcessApp1Marker(BufferedReadStream stream, int remaining)
         {
-            const int ExifMarkerLength = 6;
-            const int XmpMarkerLength = 29;
-            if (remaining < ExifMarkerLength || this.skipMetadata)
+            const int exifMarkerLength = 6;
+            const int xmpMarkerLength = 29;
+            if (remaining < exifMarkerLength || this.skipMetadata)
             {
                 // Skip the application header length.
                 stream.Skip(remaining);
@@ -787,8 +782,8 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
             }
 
             // XMP marker is the longer then the EXIF marker, so first try read the EXIF marker bytes.
-            stream.Read(this.temp, 0, ExifMarkerLength);
-            remaining -= ExifMarkerLength;
+            stream.Read(this.temp, 0, exifMarkerLength);
+            remaining -= exifMarkerLength;
 
             if (ProfileResolver.IsProfile(this.temp, ProfileResolver.ExifMarker))
             {
@@ -803,15 +798,15 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
                 else
                 {
                     // If the EXIF information exceeds 64K, it will be split over multiple APP1 markers.
-                    this.ExtendProfile(ref this.exifData, profile);
+                    ExtendProfile(ref this.exifData, profile);
                 }
 
                 remaining = 0;
             }
 
-            if (ProfileResolver.IsProfile(this.temp, ProfileResolver.XmpMarker[..ExifMarkerLength]))
+            if (ProfileResolver.IsProfile(this.temp, ProfileResolver.XmpMarker[..exifMarkerLength]))
             {
-                const int remainingXmpMarkerBytes = XmpMarkerLength - ExifMarkerLength;
+                const int remainingXmpMarkerBytes = xmpMarkerLength - exifMarkerLength;
                 if (remaining < remainingXmpMarkerBytes || this.skipMetadata)
                 {
                     // Skip the application header length.
@@ -819,7 +814,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
                     return;
                 }
 
-                stream.Read(this.temp, ExifMarkerLength, remainingXmpMarkerBytes);
+                stream.Read(this.temp, exifMarkerLength, remainingXmpMarkerBytes);
                 remaining -= remainingXmpMarkerBytes;
                 if (ProfileResolver.IsProfile(this.temp, ProfileResolver.XmpMarker))
                 {
@@ -834,7 +829,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
                     else
                     {
                         // If the XMP information exceeds 64K, it will be split over multiple APP1 markers.
-                        this.ExtendProfile(ref this.xmpData, profile);
+                        ExtendProfile(ref this.xmpData, profile);
                     }
 
                     remaining = 0;
@@ -853,16 +848,16 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
         private void ProcessApp2Marker(BufferedReadStream stream, int remaining)
         {
             // Length is 14 though we only need to check 12.
-            const int Icclength = 14;
-            if (remaining < Icclength || this.skipMetadata)
+            const int icclength = 14;
+            if (remaining < icclength || this.skipMetadata)
             {
                 stream.Skip(remaining);
                 return;
             }
 
-            byte[] identifier = new byte[Icclength];
-            stream.Read(identifier, 0, Icclength);
-            remaining -= Icclength; // We have read it by this point
+            byte[] identifier = new byte[icclength];
+            stream.Read(identifier, 0, icclength);
+            remaining -= icclength; // We have read it by this point
 
             if (ProfileResolver.IsProfile(identifier, ProfileResolver.IccMarker))
             {
@@ -877,7 +872,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
                 else
                 {
                     // If the ICC information exceeds 64K, it will be split over multiple APP2 markers
-                    this.ExtendProfile(ref this.iccData, profile);
+                    ExtendProfile(ref this.iccData, profile);
                 }
             }
             else
@@ -971,7 +966,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
                 byte conditioningTableValue = (byte)stream.ReadByte();
                 remaining--;
 
-                var arithmeticTable = new ArithmeticDecodingTable(tableClass, identifier);
+                ArithmeticDecodingTable arithmeticTable = new(tableClass, identifier);
                 arithmeticTable.Configure(conditioningTableValue);
 
                 bool tableEntryReplaced = false;
@@ -1029,16 +1024,16 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
         /// <param name="remaining">The remaining bytes in the segment block.</param>
         private void ProcessApp14Marker(BufferedReadStream stream, int remaining)
         {
-            const int MarkerLength = AdobeMarker.Length;
-            if (remaining < MarkerLength)
+            const int markerLength = AdobeMarker.Length;
+            if (remaining < markerLength)
             {
                 // Skip the application header length
                 stream.Skip(remaining);
                 return;
             }
 
-            stream.Read(this.temp, 0, MarkerLength);
-            remaining -= MarkerLength;
+            stream.Read(this.temp, 0, markerLength);
+            remaining -= markerLength;
 
             if (AdobeMarker.TryParse(this.temp, out this.adobe))
             {
@@ -1086,7 +1081,6 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
                 {
                     // 8 bit values
                     case 0:
-                    {
                         // Validate: 8 bit table needs exactly 64 bytes
                         if (remaining < 64)
                         {
@@ -1103,11 +1097,9 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
                         }
 
                         break;
-                    }
 
                     // 16 bit values
                     case 1:
-                    {
                         // Validate: 16 bit table needs exactly 128 bytes
                         if (remaining < 128)
                         {
@@ -1124,14 +1116,11 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
                         }
 
                         break;
-                    }
 
                     // Unknown precision - error
                     default:
-                    {
                         JpegThrowHelper.ThrowBadQuantizationTablePrecision(tablePrecision);
                         break;
-                    }
                 }
 
                 // Estimating quality
@@ -1139,17 +1128,13 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
                 {
                     // luminance table
                     case 0:
-                    {
                         jpegMetadata.LuminanceQuality = Quantization.EstimateLuminanceQuality(ref table);
                         break;
-                    }
 
                     // chrominance table
                     case 1:
-                    {
                         jpegMetadata.ChrominanceQuality = Quantization.EstimateChrominanceQuality(ref table);
                         break;
-                    }
                 }
             }
         }
@@ -1312,7 +1297,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
             const int codeValuesMaxByteSize = 256;
             const int totalBufferSize = codeLengthsByteSize + codeValuesMaxByteSize + HuffmanTable.WorkspaceByteSize;
 
-            var huffmanScanDecoder = this.scanDecoder as HuffmanScanDecoder;
+            HuffmanScanDecoder huffmanScanDecoder = this.scanDecoder as HuffmanScanDecoder;
             if (huffmanScanDecoder is null)
             {
                 JpegThrowHelper.ThrowInvalidImageContentException("missing huffman table data");
@@ -1399,6 +1384,8 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
         /// <summary>
         /// Processes the SOS (Start of scan marker).
         /// </summary>
+        /// <param name="stream">The input stream.</param>
+        /// <param name="remaining">The remaining bytes in the segment block.</param>
         private void ProcessStartOfScanMarker(BufferedReadStream stream, int remaining)
         {
             if (this.Frame is null)
@@ -1479,11 +1466,9 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
                 JpegThrowHelper.ThrowInvalidImageContentException("Not enough data to read progressive scan decoding data");
             }
 
-            int spectralStart = this.temp[0];
-            this.scanDecoder.SpectralStart = spectralStart;
+            this.scanDecoder.SpectralStart = this.temp[0];
 
-            int spectralEnd = this.temp[1];
-            this.scanDecoder.SpectralEnd = spectralEnd;
+            this.scanDecoder.SpectralEnd = this.temp[1];
 
             int successiveApproximation = this.temp[2];
             this.scanDecoder.SuccessiveHigh = successiveApproximation >> 4;

src/ImageSharp/Formats/Jpeg/JpegImageFormatDetector.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -15,22 +15,18 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
 
         /// <inheritdoc/>
         public IImageFormat DetectFormat(ReadOnlySpan<byte> header)
-        {
-            return this.IsSupportedFileFormat(header) ? JpegFormat.Instance : null;
-        }
+            => this.IsSupportedFileFormat(header) ? JpegFormat.Instance : null;
 
         private bool IsSupportedFileFormat(ReadOnlySpan<byte> header)
-        {
-            return header.Length >= this.HeaderSize &&
-                   (this.IsJfif(header) || this.IsExif(header) || this.IsJpeg(header));
-        }
+            => header.Length >= this.HeaderSize
+            && (IsJfif(header) || IsExif(header) || IsJpeg(header));
 
         /// <summary>
         /// Returns a value indicating whether the given bytes identify Jfif data.
         /// </summary>
         /// <param name="header">The bytes representing the file header.</param>
         /// <returns>The <see cref="bool"/></returns>
-        private bool IsJfif(ReadOnlySpan<byte> header) =>
+        private static bool IsJfif(ReadOnlySpan<byte> header) =>
             header[6] == 0x4A && // J
             header[7] == 0x46 && // F
             header[8] == 0x49 && // I
@@ -42,7 +38,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
         /// </summary>
         /// <param name="header">The bytes representing the file header.</param>
         /// <returns>The <see cref="bool"/></returns>
-        private bool IsExif(ReadOnlySpan<byte> header) =>
+        private static bool IsExif(ReadOnlySpan<byte> header) =>
             header[6] == 0x45 && // E
             header[7] == 0x78 && // X
             header[8] == 0x69 && // I
@@ -55,7 +51,7 @@ namespace SixLabors.ImageSharp.Formats.Jpeg
         /// </summary>
         /// <param name="header">The bytes representing the file header.</param>
         /// <returns>The <see cref="bool"/></returns>
-        private bool IsJpeg(ReadOnlySpan<byte> header) =>
+        private static bool IsJpeg(ReadOnlySpan<byte> header) =>
             header[0] == 0xFF && // 255
             header[1] == 0xD8; // 216
     }

src/ImageSharp/Formats/Pbm/PbmImageFormatDetector.cs

@@ -18,13 +18,11 @@ namespace SixLabors.ImageSharp.Formats.Pbm
         public int HeaderSize => 2;
 
         /// <inheritdoc/>
-        public IImageFormat DetectFormat(ReadOnlySpan<byte> header) => this.IsSupportedFileFormat(header) ? PbmFormat.Instance : null;
+        public IImageFormat DetectFormat(ReadOnlySpan<byte> header) => IsSupportedFileFormat(header) ? PbmFormat.Instance : null;
 
-        private bool IsSupportedFileFormat(ReadOnlySpan<byte> header)
+        private static bool IsSupportedFileFormat(ReadOnlySpan<byte> header)
         {
-#pragma warning disable SA1131 // Use readable conditions
-            if (1 < (uint)header.Length)
-#pragma warning restore SA1131 // Use readable conditions
+            if ((uint)header.Length > 1)
             {
                 // Signature should be between P1 and P6.
                 return header[0] == P && (uint)(header[1] - Zero - 1) < (Seven - Zero - 1);

src/ImageSharp/Formats/Png/PngDecoderCore.cs

@@ -150,7 +150,7 @@ namespace SixLabors.ImageSharp.Formats.Png
         public Image<TPixel> Decode<TPixel>(BufferedReadStream stream, CancellationToken cancellationToken)
             where TPixel : unmanaged, IPixel<TPixel>
         {
-            var metadata = new ImageMetadata();
+            ImageMetadata metadata = new();
             PngMetadata pngMetadata = metadata.GetPngMetadata();
             this.currentStream = stream;
             this.currentStream.Skip(8);
@@ -250,7 +250,7 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// <inheritdoc/>
         public IImageInfo Identify(BufferedReadStream stream, CancellationToken cancellationToken)
         {
-            var metadata = new ImageMetadata();
+            ImageMetadata metadata = new();
             PngMetadata pngMetadata = metadata.GetPngMetadata();
             this.currentStream = stream;
             this.currentStream.Skip(8);
@@ -434,7 +434,7 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// <param name="data">The data containing physical data.</param>
         private static void ReadPhysicalChunk(ImageMetadata metadata, ReadOnlySpan<byte> data)
         {
-            var physicalChunk = PhysicalChunkData.Parse(data);
+            PhysicalChunkData physicalChunk = PhysicalChunkData.Parse(data);
 
             metadata.ResolutionUnits = physicalChunk.UnitSpecifier == byte.MinValue
                 ? PixelResolutionUnit.AspectRatio
@@ -560,7 +560,7 @@ namespace SixLabors.ImageSharp.Formats.Png
         private void ReadScanlines<TPixel>(PngChunk chunk, ImageFrame<TPixel> image, PngMetadata pngMetadata)
             where TPixel : unmanaged, IPixel<TPixel>
         {
-            using var deframeStream = new ZlibInflateStream(this.currentStream, this.ReadNextDataChunk);
+            using ZlibInflateStream deframeStream = new(this.currentStream, this.ReadNextDataChunk);
             deframeStream.AllocateNewBytes(chunk.Length, true);
             DeflateStream dataStream = deframeStream.CompressedStream;
 
@@ -1018,7 +1018,7 @@ namespace SixLabors.ImageSharp.Formats.Png
 
             string value = PngConstants.Encoding.GetString(data[(zeroIndex + 1)..]);
 
-            if (!this.TryReadTextChunkMetadata(baseMetadata, name, value))
+            if (!TryReadTextChunkMetadata(baseMetadata, name, value))
             {
                 metadata.TextData.Add(new PngTextData(name, value, string.Empty, string.Empty));
             }
@@ -1058,8 +1058,8 @@ namespace SixLabors.ImageSharp.Formats.Png
 
             ReadOnlySpan<byte> compressedData = data[(zeroIndex + 2)..];
 
-            if (this.TryUncompressTextData(compressedData, PngConstants.Encoding, out string uncompressed) &&
-                !this.TryReadTextChunkMetadata(baseMetadata, name, uncompressed))
+            if (this.TryUncompressTextData(compressedData, PngConstants.Encoding, out string uncompressed)
+                && !TryReadTextChunkMetadata(baseMetadata, name, uncompressed))
             {
                 metadata.TextData.Add(new PngTextData(name, uncompressed, string.Empty, string.Empty));
             }
@@ -1074,10 +1074,10 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// <returns>True if metadata was successfully parsed from the text chunk. False if the
         /// text chunk was not identified as metadata, and should be stored in the metadata
         /// object unmodified.</returns>
-        private bool TryReadTextChunkMetadata(ImageMetadata baseMetadata, string chunkName, string chunkText)
+        private static bool TryReadTextChunkMetadata(ImageMetadata baseMetadata, string chunkName, string chunkText)
         {
             if (chunkName.Equals("Raw profile type exif", StringComparison.OrdinalIgnoreCase) &&
-                this.TryReadLegacyExifTextChunk(baseMetadata, chunkText))
+                TryReadLegacyExifTextChunk(baseMetadata, chunkText))
             {
                 // Successfully parsed legacy exif data from text
                 return true;
@@ -1096,7 +1096,7 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// </summary>
         /// <param name="metadata">The <see cref="ImageMetadata"/> to store the decoded exif tags into.</param>
         /// <param name="data">The contents of the "raw profile type exif" text chunk.</param>
-        private bool TryReadLegacyExifTextChunk(ImageMetadata metadata, string data)
+        private static bool TryReadLegacyExifTextChunk(ImageMetadata metadata, string data)
         {
             ReadOnlySpan<char> dataSpan = data.AsSpan();
             dataSpan = dataSpan.TrimStart();
@@ -1219,10 +1219,10 @@ namespace SixLabors.ImageSharp.Formats.Png
             fixed (byte* compressedDataBase = compressedData)
             {
                 using IMemoryOwner<byte> destBuffer = this.memoryAllocator.Allocate<byte>(this.configuration.StreamProcessingBufferSize);
-                using var memoryStreamOutput = new MemoryStream(compressedData.Length);
-                using var memoryStreamInput = new UnmanagedMemoryStream(compressedDataBase, compressedData.Length);
-                using var bufferedStream = new BufferedReadStream(this.configuration, memoryStreamInput);
-                using var inflateStream = new ZlibInflateStream(bufferedStream);
+                using MemoryStream memoryStreamOutput = new(compressedData.Length);
+                using UnmanagedMemoryStream memoryStreamInput = new(compressedDataBase, compressedData.Length);
+                using BufferedReadStream bufferedStream = new(this.configuration, memoryStreamInput);
+                using ZlibInflateStream inflateStream = new(bufferedStream);
 
                 Span<byte> destUncompressedData = destBuffer.GetSpan();
                 if (!inflateStream.AllocateNewBytes(compressedData.Length, false))
@@ -1358,7 +1358,7 @@ namespace SixLabors.ImageSharp.Formats.Png
             }
             else if (IsXmpTextData(keywordBytes))
             {
-                var xmpProfile = new XmpProfile(data[dataStartIdx..].ToArray());
+                XmpProfile xmpProfile = new(data[dataStartIdx..].ToArray());
                 metadata.XmpProfile = xmpProfile;
             }
             else
@@ -1561,18 +1561,17 @@ namespace SixLabors.ImageSharp.Formats.Png
             {
                 return (PngChunkType)BinaryPrimitives.ReadUInt32BigEndian(this.buffer);
             }
-            else
-            {
-                PngThrowHelper.ThrowInvalidChunkType();
 
-                // The IDE cannot detect the throw here.
-                return default;
-            }
+            PngThrowHelper.ThrowInvalidChunkType();
+
+            // The IDE cannot detect the throw here.
+            return default;
         }
 
         /// <summary>
         /// Attempts to read the length of the next chunk.
         /// </summary>
+        /// <param name="result">The result length. If the return type is <see langword="false"/> this parameter is passed uninitialized.</param>
         /// <returns>
         /// Whether the length was read.
         /// </returns>
@@ -1613,10 +1612,13 @@ namespace SixLabors.ImageSharp.Formats.Png
 
             // Keywords should not be empty or have leading or trailing whitespace.
             name = PngConstants.Encoding.GetString(keywordBytes);
-            return !string.IsNullOrWhiteSpace(name) && !name.StartsWith(" ") && !name.EndsWith(" ");
+            return !string.IsNullOrWhiteSpace(name)
+                && !name.StartsWith(" ", StringComparison.Ordinal)
+                && !name.EndsWith(" ", StringComparison.Ordinal);
         }
 
-        private static bool IsXmpTextData(ReadOnlySpan<byte> keywordBytes) => keywordBytes.SequenceEqual(PngConstants.XmpKeyword);
+        private static bool IsXmpTextData(ReadOnlySpan<byte> keywordBytes)
+            => keywordBytes.SequenceEqual(PngConstants.XmpKeyword);
 
         private void SwapScanlineBuffers()
             => (this.scanline, this.previousScanline) = (this.previousScanline, this.scanline);

src/ImageSharp/Formats/Png/PngEncoderCore.cs

@@ -245,62 +245,56 @@ namespace SixLabors.ImageSharp.Formats.Png
                         }
                     }
                 }
-                else
-                {
-                    if (this.bitDepth == 8)
-                    {
-                        // 8 bit grayscale
-                        PixelOperations<TPixel>.Instance.ToL8Bytes(
-                            this.configuration,
-                            rowSpan,
-                            rawScanlineSpan,
-                            rowSpan.Length);
-                    }
-                    else
-                    {
-                        // 1, 2, and 4 bit grayscale
-                        using IMemoryOwner<byte> temp = this.memoryAllocator.Allocate<byte>(rowSpan.Length, AllocationOptions.Clean);
-                        int scaleFactor = 255 / (ColorNumerics.GetColorCountForBitDepth(this.bitDepth) - 1);
-                        Span<byte> tempSpan = temp.GetSpan();
-
-                        // We need to first create an array of luminance bytes then scale them down to the correct bit depth.
-                        PixelOperations<TPixel>.Instance.ToL8Bytes(
-                            this.configuration,
-                            rowSpan,
-                            tempSpan,
-                            rowSpan.Length);
-                        PngEncoderHelpers.ScaleDownFrom8BitArray(tempSpan, rawScanlineSpan, this.bitDepth, scaleFactor);
-                    }
-                }
-            }
-            else
-            {
-                if (this.use16Bit)
+                else if (this.bitDepth == 8)
                 {
-                    // 16 bit grayscale + alpha
-                    using IMemoryOwner<La32> laBuffer = this.memoryAllocator.Allocate<La32>(rowSpan.Length);
-                    Span<La32> laSpan = laBuffer.GetSpan();
-                    ref La32 laRef = ref MemoryMarshal.GetReference(laSpan);
-                    PixelOperations<TPixel>.Instance.ToLa32(this.configuration, rowSpan, laSpan);
-
-                    // Can't map directly to byte array as it's big endian.
-                    for (int x = 0, o = 0; x < laSpan.Length; x++, o += 4)
-                    {
-                        La32 la = Unsafe.Add(ref laRef, x);
-                        BinaryPrimitives.WriteUInt16BigEndian(rawScanlineSpan.Slice(o, 2), la.L);
-                        BinaryPrimitives.WriteUInt16BigEndian(rawScanlineSpan.Slice(o + 2, 2), la.A);
-                    }
+                    // 8 bit grayscale
+                    PixelOperations<TPixel>.Instance.ToL8Bytes(
+                        this.configuration,
+                        rowSpan,
+                        rawScanlineSpan,
+                        rowSpan.Length);
                 }
                 else
                 {
-                    // 8 bit grayscale + alpha
-                    PixelOperations<TPixel>.Instance.ToLa16Bytes(
+                    // 1, 2, and 4 bit grayscale
+                    using IMemoryOwner<byte> temp = this.memoryAllocator.Allocate<byte>(rowSpan.Length, AllocationOptions.Clean);
+                    int scaleFactor = 255 / (ColorNumerics.GetColorCountForBitDepth(this.bitDepth) - 1);
+                    Span<byte> tempSpan = temp.GetSpan();
+
+                    // We need to first create an array of luminance bytes then scale them down to the correct bit depth.
+                    PixelOperations<TPixel>.Instance.ToL8Bytes(
                         this.configuration,
                         rowSpan,
-                        rawScanlineSpan,
+                        tempSpan,
                         rowSpan.Length);
+                    PngEncoderHelpers.ScaleDownFrom8BitArray(tempSpan, rawScanlineSpan, this.bitDepth, scaleFactor);
                 }
             }
+            else if (this.use16Bit)
+            {
+                // 16 bit grayscale + alpha
+                using IMemoryOwner<La32> laBuffer = this.memoryAllocator.Allocate<La32>(rowSpan.Length);
+                Span<La32> laSpan = laBuffer.GetSpan();
+                ref La32 laRef = ref MemoryMarshal.GetReference(laSpan);
+                PixelOperations<TPixel>.Instance.ToLa32(this.configuration, rowSpan, laSpan);
+
+                // Can't map directly to byte array as it's big endian.
+                for (int x = 0, o = 0; x < laSpan.Length; x++, o += 4)
+                {
+                    La32 la = Unsafe.Add(ref laRef, x);
+                    BinaryPrimitives.WriteUInt16BigEndian(rawScanlineSpan.Slice(o, 2), la.L);
+                    BinaryPrimitives.WriteUInt16BigEndian(rawScanlineSpan.Slice(o + 2, 2), la.A);
+                }
+            }
+            else
+            {
+                // 8 bit grayscale + alpha
+                PixelOperations<TPixel>.Instance.ToLa16Bytes(
+                    this.configuration,
+                    rowSpan,
+                    rawScanlineSpan,
+                    rowSpan.Length);
+            }
         }
 
         /// <summary>
@@ -316,7 +310,7 @@ namespace SixLabors.ImageSharp.Formats.Png
             switch (this.bytesPerPixel)
             {
                 case 4:
-                {
+
                     // 8 bit Rgba
                     PixelOperations<TPixel>.Instance.ToRgba32Bytes(
                         this.configuration,
@@ -324,10 +318,9 @@ namespace SixLabors.ImageSharp.Formats.Png
                         rawScanlineSpan,
                         rowSpan.Length);
                     break;
-                }
 
                 case 3:
-                {
+
                     // 8 bit Rgb
                     PixelOperations<TPixel>.Instance.ToRgb24Bytes(
                         this.configuration,
@@ -335,10 +328,9 @@ namespace SixLabors.ImageSharp.Formats.Png
                         rawScanlineSpan,
                         rowSpan.Length);
                     break;
-                }
 
                 case 8:
-                {
+
                     // 16 bit Rgba
                     using (IMemoryOwner<Rgba64> rgbaBuffer = this.memoryAllocator.Allocate<Rgba64>(rowSpan.Length))
                     {
@@ -358,10 +350,9 @@ namespace SixLabors.ImageSharp.Formats.Png
                     }
 
                     break;
-                }
 
                 default:
-                {
+
                     // 16 bit Rgb
                     using (IMemoryOwner<Rgb48> rgbBuffer = this.memoryAllocator.Allocate<Rgb48>(rowSpan.Length))
                     {
@@ -380,7 +371,6 @@ namespace SixLabors.ImageSharp.Formats.Png
                     }
 
                     break;
-                }
             }
         }
 
@@ -413,8 +403,6 @@ namespace SixLabors.ImageSharp.Formats.Png
                 case PngColorType.GrayscaleWithAlpha:
                     this.CollectGrayscaleBytes(rowSpan);
                     break;
-                case PngColorType.Rgb:
-                case PngColorType.RgbWithAlpha:
                 default:
                     this.CollectTPixelBytes(rowSpan);
                     break;
@@ -424,6 +412,8 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// <summary>
         /// Apply the line filter for the raw scanline to enable better compression.
         /// </summary>
+        /// <param name="filter">The filtered buffer.</param>
+        /// <param name="attempt">Used for attempting optimized filtering.</param>
         private void FilterPixelBytes(ref Span<byte> filter, ref Span<byte> attempt)
         {
             switch (this.options.FilterMethod)
@@ -446,7 +436,6 @@ namespace SixLabors.ImageSharp.Formats.Png
                 case PngFilterMethod.Paeth:
                     PaethFilter.Encode(this.currentScanline.GetSpan(), this.previousScanline.GetSpan(), filter, this.bytesPerPixel, out int _);
                     break;
-                case PngFilterMethod.Adaptive:
                 default:
                     this.ApplyOptimalFilteredScanline(ref filter, ref attempt);
                     break;
@@ -503,6 +492,8 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// Applies all PNG filters to the given scanline and returns the filtered scanline that is deemed
         /// to be most compressible, using lowest total variation as proxy for compressibility.
         /// </summary>
+        /// <param name="filter">The filtered buffer.</param>
+        /// <param name="attempt">Used for attempting optimized filtering.</param>
         private void ApplyOptimalFilteredScanline(ref Span<byte> filter, ref Span<byte> attempt)
         {
             // Palette images don't compress well with adaptive filtering.
@@ -551,7 +542,7 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// <param name="stream">The <see cref="Stream"/> containing image data.</param>
         private void WriteHeaderChunk(Stream stream)
         {
-            var header = new PngHeader(
+            PngHeader header = new(
                 width: this.width,
                 height: this.height,
                 bitDepth: this.bitDepth,
@@ -688,25 +679,24 @@ namespace SixLabors.ImageSharp.Formats.Png
             }
 
             int payloadLength = xmpData.Length + PngConstants.XmpKeyword.Length + iTxtHeaderSize;
-            using (IMemoryOwner<byte> owner = this.memoryAllocator.Allocate<byte>(payloadLength))
-            {
-                Span<byte> payload = owner.GetSpan();
-                PngConstants.XmpKeyword.CopyTo(payload);
-                int bytesWritten = PngConstants.XmpKeyword.Length;
-
-                // Write the iTxt header (all zeros in this case).
-                Span<byte> iTxtHeader = payload[bytesWritten..];
-                iTxtHeader[4] = 0;
-                iTxtHeader[3] = 0;
-                iTxtHeader[2] = 0;
-                iTxtHeader[1] = 0;
-                iTxtHeader[0] = 0;
-                bytesWritten += 5;
-
-                // And the XMP data itself.
-                xmpData.CopyTo(payload[bytesWritten..]);
-                this.WriteChunk(stream, PngChunkType.InternationalText, payload);
-            }
+
+            using IMemoryOwner<byte> owner = this.memoryAllocator.Allocate<byte>(payloadLength);
+            Span<byte> payload = owner.GetSpan();
+            PngConstants.XmpKeyword.CopyTo(payload);
+            int bytesWritten = PngConstants.XmpKeyword.Length;
+
+            // Write the iTxt header (all zeros in this case).
+            Span<byte> iTxtHeader = payload[bytesWritten..];
+            iTxtHeader[4] = 0;
+            iTxtHeader[3] = 0;
+            iTxtHeader[2] = 0;
+            iTxtHeader[1] = 0;
+            iTxtHeader[0] = 0;
+            bytesWritten += 5;
+
+            // And the XMP data itself.
+            xmpData.CopyTo(payload[bytesWritten..]);
+            this.WriteChunk(stream, PngChunkType.InternationalText, payload);
         }
 
         /// <summary>
@@ -725,16 +715,15 @@ namespace SixLabors.ImageSharp.Formats.Png
 
             byte[] compressedData = this.GetZlibCompressedBytes(iccProfileBytes);
             int payloadLength = ColorProfileName.Length + compressedData.Length + 2;
-            using (IMemoryOwner<byte> owner = this.memoryAllocator.Allocate<byte>(payloadLength))
-            {
-                Span<byte> outputBytes = owner.GetSpan();
-                PngConstants.Encoding.GetBytes(ColorProfileName).CopyTo(outputBytes);
-                int bytesWritten = ColorProfileName.Length;
-                outputBytes[bytesWritten++] = 0; // Null separator.
-                outputBytes[bytesWritten++] = 0; // Compression.
-                compressedData.CopyTo(outputBytes[bytesWritten..]);
-                this.WriteChunk(stream, PngChunkType.EmbeddedColorProfile, outputBytes);
-            }
+
+            using IMemoryOwner<byte> owner = this.memoryAllocator.Allocate<byte>(payloadLength);
+            Span<byte> outputBytes = owner.GetSpan();
+            PngConstants.Encoding.GetBytes(ColorProfileName).CopyTo(outputBytes);
+            int bytesWritten = ColorProfileName.Length;
+            outputBytes[bytesWritten++] = 0; // Null separator.
+            outputBytes[bytesWritten++] = 0; // Compression.
+            compressedData.CopyTo(outputBytes[bytesWritten..]);
+            this.WriteChunk(stream, PngChunkType.EmbeddedColorProfile, outputBytes);
         }
 
         /// <summary>
@@ -776,65 +765,59 @@ namespace SixLabors.ImageSharp.Formats.Png
                     byte[] languageTag = PngConstants.LanguageEncoding.GetBytes(textData.LanguageTag);
 
                     int payloadLength = keywordBytes.Length + textBytes.Length + translatedKeyword.Length + languageTag.Length + 5;
-                    using (IMemoryOwner<byte> owner = this.memoryAllocator.Allocate<byte>(payloadLength))
-                    {
-                        Span<byte> outputBytes = owner.GetSpan();
-                        keywordBytes.CopyTo(outputBytes);
-                        int bytesWritten = keywordBytes.Length;
-                        outputBytes[bytesWritten++] = 0;
-                        if (textData.Value.Length > this.options.TextCompressionThreshold)
-                        {
-                            // Indicate that the text is compressed.
-                            outputBytes[bytesWritten++] = 1;
-                        }
-                        else
-                        {
-                            outputBytes[bytesWritten++] = 0;
-                        }
 
-                        outputBytes[bytesWritten++] = 0;
-                        languageTag.CopyTo(outputBytes[bytesWritten..]);
-                        bytesWritten += languageTag.Length;
-                        outputBytes[bytesWritten++] = 0;
-                        translatedKeyword.CopyTo(outputBytes[bytesWritten..]);
-                        bytesWritten += translatedKeyword.Length;
-                        outputBytes[bytesWritten++] = 0;
-                        textBytes.CopyTo(outputBytes[bytesWritten..]);
-                        this.WriteChunk(stream, PngChunkType.InternationalText, outputBytes);
-                    }
-                }
-                else
-                {
+                    using IMemoryOwner<byte> owner = this.memoryAllocator.Allocate<byte>(payloadLength);
+                    Span<byte> outputBytes = owner.GetSpan();
+                    keywordBytes.CopyTo(outputBytes);
+                    int bytesWritten = keywordBytes.Length;
+                    outputBytes[bytesWritten++] = 0;
                     if (textData.Value.Length > this.options.TextCompressionThreshold)
                     {
-                        // Write zTXt chunk.
-                        byte[] compressedData = this.GetZlibCompressedBytes(PngConstants.Encoding.GetBytes(textData.Value));
-                        int payloadLength = textData.Keyword.Length + compressedData.Length + 2;
-                        using (IMemoryOwner<byte> owner = this.memoryAllocator.Allocate<byte>(payloadLength))
-                        {
-                            Span<byte> outputBytes = owner.GetSpan();
-                            PngConstants.Encoding.GetBytes(textData.Keyword).CopyTo(outputBytes);
-                            int bytesWritten = textData.Keyword.Length;
-                            outputBytes[bytesWritten++] = 0; // Null separator.
-                            outputBytes[bytesWritten++] = 0; // Compression.
-                            compressedData.CopyTo(outputBytes[bytesWritten..]);
-                            this.WriteChunk(stream, PngChunkType.CompressedText, outputBytes);
-                        }
+                        // Indicate that the text is compressed.
+                        outputBytes[bytesWritten++] = 1;
                     }
                     else
                     {
-                        // Write tEXt chunk.
-                        int payloadLength = textData.Keyword.Length + textData.Value.Length + 1;
-                        using (IMemoryOwner<byte> owner = this.memoryAllocator.Allocate<byte>(payloadLength))
-                        {
-                            Span<byte> outputBytes = owner.GetSpan();
-                            PngConstants.Encoding.GetBytes(textData.Keyword).CopyTo(outputBytes);
-                            int bytesWritten = textData.Keyword.Length;
-                            outputBytes[bytesWritten++] = 0;
-                            PngConstants.Encoding.GetBytes(textData.Value).CopyTo(outputBytes[bytesWritten..]);
-                            this.WriteChunk(stream, PngChunkType.Text, outputBytes);
-                        }
+                        outputBytes[bytesWritten++] = 0;
                     }
+
+                    outputBytes[bytesWritten++] = 0;
+                    languageTag.CopyTo(outputBytes[bytesWritten..]);
+                    bytesWritten += languageTag.Length;
+                    outputBytes[bytesWritten++] = 0;
+                    translatedKeyword.CopyTo(outputBytes[bytesWritten..]);
+                    bytesWritten += translatedKeyword.Length;
+                    outputBytes[bytesWritten++] = 0;
+                    textBytes.CopyTo(outputBytes[bytesWritten..]);
+                    this.WriteChunk(stream, PngChunkType.InternationalText, outputBytes);
+                }
+                else if (textData.Value.Length > this.options.TextCompressionThreshold)
+                {
+                    // Write zTXt chunk.
+                    byte[] compressedData = this.GetZlibCompressedBytes(PngConstants.Encoding.GetBytes(textData.Value));
+                    int payloadLength = textData.Keyword.Length + compressedData.Length + 2;
+
+                    using IMemoryOwner<byte> owner = this.memoryAllocator.Allocate<byte>(payloadLength);
+                    Span<byte> outputBytes = owner.GetSpan();
+                    PngConstants.Encoding.GetBytes(textData.Keyword).CopyTo(outputBytes);
+                    int bytesWritten = textData.Keyword.Length;
+                    outputBytes[bytesWritten++] = 0; // Null separator.
+                    outputBytes[bytesWritten++] = 0; // Compression.
+                    compressedData.CopyTo(outputBytes[bytesWritten..]);
+                    this.WriteChunk(stream, PngChunkType.CompressedText, outputBytes);
+                }
+                else
+                {
+                    // Write tEXt chunk.
+                    int payloadLength = textData.Keyword.Length + textData.Value.Length + 1;
+
+                    using IMemoryOwner<byte> owner = this.memoryAllocator.Allocate<byte>(payloadLength);
+                    Span<byte> outputBytes = owner.GetSpan();
+                    PngConstants.Encoding.GetBytes(textData.Keyword).CopyTo(outputBytes);
+                    int bytesWritten = textData.Keyword.Length;
+                    outputBytes[bytesWritten++] = 0;
+                    PngConstants.Encoding.GetBytes(textData.Value).CopyTo(outputBytes[bytesWritten..]);
+                    this.WriteChunk(stream, PngChunkType.Text, outputBytes);
                 }
             }
         }
@@ -846,15 +829,13 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// <returns>The compressed byte array.</returns>
         private byte[] GetZlibCompressedBytes(byte[] dataBytes)
         {
-            using (var memoryStream = new MemoryStream())
+            using MemoryStream memoryStream = new();
+            using (ZlibDeflateStream deflateStream = new(this.memoryAllocator, memoryStream, this.options.CompressionLevel))
             {
-                using (var deflateStream = new ZlibDeflateStream(this.memoryAllocator, memoryStream, this.options.CompressionLevel))
-                {
-                    deflateStream.Write(dataBytes);
-                }
-
-                return memoryStream.ToArray();
+                deflateStream.Write(dataBytes);
             }
+
+            return memoryStream.ToArray();
         }
 
         /// <summary>
@@ -944,9 +925,9 @@ namespace SixLabors.ImageSharp.Formats.Png
             byte[] buffer;
             int bufferLength;
 
-            using (var memoryStream = new MemoryStream())
+            using (MemoryStream memoryStream = new())
             {
-                using (var deflateStream = new ZlibDeflateStream(this.memoryAllocator, memoryStream, this.options.CompressionLevel))
+                using (ZlibDeflateStream deflateStream = new(this.memoryAllocator, memoryStream, this.options.CompressionLevel))
                 {
                     if (this.options.InterlaceMethod == PngInterlaceMode.Adam7)
                     {
@@ -1174,7 +1155,7 @@ namespace SixLabors.ImageSharp.Formats.Png
 
             uint crc = Crc32.Calculate(this.buffer.AsSpan(4, 4)); // Write the type buffer
 
-            if (data != null && length > 0)
+            if (data.Length > 0 && length > 0)
             {
                 stream.Write(data, offset, length);
 

src/ImageSharp/Formats/Png/PngTextData.cs

@@ -72,9 +72,7 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// True if the current left is equal to the <paramref name="right"/> parameter; otherwise, false.
         /// </returns>
         public static bool operator ==(PngTextData left, PngTextData right)
-        {
-            return left.Equals(right);
-        }
+            => left.Equals(right);
 
         /// <summary>
         /// Compares two <see cref="PngTextData"/> objects. The result specifies whether the values
@@ -90,9 +88,7 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// True if the current left is unequal to the <paramref name="right"/> parameter; otherwise, false.
         /// </returns>
         public static bool operator !=(PngTextData left, PngTextData right)
-        {
-            return !(left == right);
-        }
+            => !(left == right);
 
         /// <summary>
         /// Indicates whether this instance and a specified object are equal.
@@ -105,9 +101,7 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// same value; otherwise, false.
         /// </returns>
         public override bool Equals(object obj)
-        {
-            return obj is PngTextData other && this.Equals(other);
-        }
+            => obj is PngTextData other && this.Equals(other);
 
         /// <summary>
         /// Returns the hash code for this instance.
@@ -115,7 +109,8 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// <returns>
         /// A 32-bit signed integer that is the hash code for this instance.
         /// </returns>
-        public override int GetHashCode() => HashCode.Combine(this.Keyword, this.Value, this.LanguageTag, this.TranslatedKeyword);
+        public override int GetHashCode()
+            => HashCode.Combine(this.Keyword, this.Value, this.LanguageTag, this.TranslatedKeyword);
 
         /// <summary>
         /// Returns the fully qualified type name of this instance.
@@ -123,7 +118,8 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// <returns>
         /// A <see cref="T:System.String"/> containing a fully qualified type name.
         /// </returns>
-        public override string ToString() => $"PngTextData [ Name={this.Keyword}, Value={this.Value} ]";
+        public override string ToString()
+            => $"PngTextData [ Name={this.Keyword}, Value={this.Value} ]";
 
         /// <summary>
         /// Indicates whether the current object is equal to another object of the same type.
@@ -133,11 +129,9 @@ namespace SixLabors.ImageSharp.Formats.Png
         /// </returns>
         /// <param name="other">An object to compare with this object.</param>
         public bool Equals(PngTextData other)
-        {
-            return this.Keyword.Equals(other.Keyword)
-                   && this.Value.Equals(other.Value)
-                   && this.LanguageTag.Equals(other.LanguageTag)
-                   && this.TranslatedKeyword.Equals(other.TranslatedKeyword);
-        }
+            => this.Keyword.Equals(other.Keyword, StringComparison.OrdinalIgnoreCase)
+            && this.Value.Equals(other.Value, StringComparison.OrdinalIgnoreCase)
+            && this.LanguageTag.Equals(other.LanguageTag, StringComparison.OrdinalIgnoreCase)
+            && this.TranslatedKeyword.Equals(other.TranslatedKeyword, StringComparison.OrdinalIgnoreCase);
     }
 }

src/ImageSharp/Formats/Png/PngThrowHelper.cs

@@ -2,6 +2,7 @@
 // Licensed under the Six Labors Split License.
 
 using System;
+using System.Diagnostics.CodeAnalysis;
 using System.Runtime.CompilerServices;
 
 namespace SixLabors.ImageSharp.Formats.Png
@@ -11,31 +12,40 @@ namespace SixLabors.ImageSharp.Formats.Png
     /// </summary>
     internal static class PngThrowHelper
     {
+        [DoesNotReturn]
         [MethodImpl(InliningOptions.ColdPath)]
         public static void ThrowInvalidImageContentException(string errorMessage, Exception innerException)
             => throw new InvalidImageContentException(errorMessage, innerException);
 
+        [DoesNotReturn]
         [MethodImpl(InliningOptions.ColdPath)]
         public static void ThrowNoHeader() => throw new InvalidImageContentException("PNG Image does not contain a header chunk");
 
+        [DoesNotReturn]
         [MethodImpl(InliningOptions.ColdPath)]
         public static void ThrowNoData() => throw new InvalidImageContentException("PNG Image does not contain a data chunk");
 
+        [DoesNotReturn]
         [MethodImpl(InliningOptions.ColdPath)]
         public static void ThrowMissingPalette() => throw new InvalidImageContentException("PNG Image does not contain a palette chunk");
 
+        [DoesNotReturn]
         [MethodImpl(InliningOptions.ColdPath)]
         public static void ThrowInvalidChunkType() => throw new InvalidImageContentException("Invalid PNG data.");
 
+        [DoesNotReturn]
         [MethodImpl(InliningOptions.ColdPath)]
         public static void ThrowInvalidChunkType(string message) => throw new InvalidImageContentException(message);
 
+        [DoesNotReturn]
         [MethodImpl(InliningOptions.ColdPath)]
         public static void ThrowInvalidChunkCrc(string chunkTypeName) => throw new InvalidImageContentException($"CRC Error. PNG {chunkTypeName} chunk is corrupt!");
 
+        [DoesNotReturn]
         [MethodImpl(InliningOptions.ColdPath)]
         public static void ThrowNotSupportedColor() => throw new NotSupportedException("Unsupported PNG color type");
 
+        [DoesNotReturn]
         [MethodImpl(InliningOptions.ColdPath)]
         public static void ThrowUnknownFilter() => throw new InvalidImageContentException("Unknown filter type.");
     }

src/ImageSharp/Formats/Tga/TgaEncoderCore.cs

@@ -5,6 +5,7 @@ using System;
 using System.Buffers;
 using System.Buffers.Binary;
 using System.IO;
+using System.Numerics;
 using System.Runtime.CompilerServices;
 using System.Threading;
 using SixLabors.ImageSharp.Advanced;
@@ -99,7 +100,7 @@ namespace SixLabors.ImageSharp.Formats.Tga
                 imageDescriptor |= 0x1;
             }
 
-            var fileHeader = new TgaFileHeader(
+            TgaFileHeader fileHeader = new(
                 idLength: 0,
                 colorMapType: 0,
                 imageType: imageType,
@@ -158,8 +159,6 @@ namespace SixLabors.ImageSharp.Formats.Tga
                 case TgaBitsPerPixel.Pixel32:
                     this.Write32Bit(stream, pixels);
                     break;
-                default:
-                    break;
             }
         }
 
@@ -181,7 +180,7 @@ namespace SixLabors.ImageSharp.Formats.Tga
                 {
                     TPixel currentPixel = pixelRow[x];
                     currentPixel.ToRgba32(ref color);
-                    byte equalPixelCount = this.FindEqualPixels(pixelRow, x);
+                    byte equalPixelCount = FindEqualPixels(pixelRow, x);
 
                     if (equalPixelCount > 0)
                     {
@@ -193,7 +192,7 @@ namespace SixLabors.ImageSharp.Formats.Tga
                     else
                     {
                         // Write Raw Packet (i.e., Non-Run-Length Encoded):
-                        byte unEqualPixelCount = this.FindUnEqualPixels(pixelRow, x);
+                        byte unEqualPixelCount = FindUnEqualPixels(pixelRow, x);
                         stream.WriteByte(unEqualPixelCount);
                         this.WritePixel(stream, currentPixel, color);
                         x++;
@@ -227,7 +226,7 @@ namespace SixLabors.ImageSharp.Formats.Tga
                     break;
 
                 case TgaBitsPerPixel.Pixel16:
-                    var bgra5551 = new Bgra5551(color.ToVector4());
+                    Bgra5551 bgra5551 = new(color.ToVector4());
                     BinaryPrimitives.TryWriteInt16LittleEndian(this.buffer, (short)bgra5551.PackedValue);
                     stream.WriteByte(this.buffer[0]);
                     stream.WriteByte(this.buffer[1]);
@@ -246,8 +245,6 @@ namespace SixLabors.ImageSharp.Formats.Tga
                     stream.WriteByte(color.R);
                     stream.WriteByte(color.A);
                     break;
-                default:
-                    break;
             }
         }
 
@@ -258,7 +255,7 @@ namespace SixLabors.ImageSharp.Formats.Tga
         /// <param name="pixelRow">A pixel row of the image to encode.</param>
         /// <param name="xStart">X coordinate to start searching for the same pixels.</param>
         /// <returns>The number of equal pixels.</returns>
-        private byte FindEqualPixels<TPixel>(Span<TPixel> pixelRow, int xStart)
+        private static byte FindEqualPixels<TPixel>(Span<TPixel> pixelRow, int xStart)
             where TPixel : unmanaged, IPixel<TPixel>
         {
             byte equalPixelCount = 0;
@@ -291,7 +288,7 @@ namespace SixLabors.ImageSharp.Formats.Tga
         /// <param name="pixelRow">A pixel row of the image to encode.</param>
         /// <param name="xStart">X coordinate to start searching for the unequal pixels.</param>
         /// <returns>The number of equal pixels.</returns>
-        private byte FindUnEqualPixels<TPixel>(Span<TPixel> pixelRow, int xStart)
+        private static byte FindUnEqualPixels<TPixel>(Span<TPixel> pixelRow, int xStart)
             where TPixel : unmanaged, IPixel<TPixel>
         {
             byte unEqualPixelCount = 0;
@@ -419,12 +416,13 @@ namespace SixLabors.ImageSharp.Formats.Tga
         /// <summary>
         /// Convert the pixel values to grayscale using ITU-R Recommendation BT.709.
         /// </summary>
+        /// <typeparam name="TPixel">The type of pixel format.</typeparam>
         /// <param name="sourcePixel">The pixel to get the luminance from.</param>
         [MethodImpl(InliningOptions.ShortMethod)]
         public static int GetLuminance<TPixel>(TPixel sourcePixel)
             where TPixel : unmanaged, IPixel<TPixel>
         {
-            var vector = sourcePixel.ToVector4();
+            Vector4 vector = sourcePixel.ToVector4();
             return ColorNumerics.GetBT709Luminance(ref vector, 256);
         }
     }

src/ImageSharp/Formats/Tga/TgaMetadata.cs

@@ -20,9 +20,7 @@ namespace SixLabors.ImageSharp.Formats.Tga
         /// </summary>
         /// <param name="other">The metadata to create an instance from.</param>
         private TgaMetadata(TgaMetadata other)
-        {
-            this.BitsPerPixel = other.BitsPerPixel;
-        }
+            => this.BitsPerPixel = other.BitsPerPixel;
 
         /// <summary>
         /// Gets or sets the number of bits per pixel.
@@ -30,9 +28,9 @@ namespace SixLabors.ImageSharp.Formats.Tga
         public TgaBitsPerPixel BitsPerPixel { get; set; } = TgaBitsPerPixel.Pixel24;
 
         /// <summary>
-        /// Gets or sets the the number of alpha bits per pixel.
+        /// Gets or sets the number of alpha bits per pixel.
         /// </summary>
-        public byte AlphaChannelBits { get; set; } = 0;
+        public byte AlphaChannelBits { get; set; }
 
         /// <inheritdoc/>
         public IDeepCloneable DeepClone() => new TgaMetadata(this);

src/ImageSharp/Formats/Tiff/Compression/Compressors/T4BitCompressor.cs

@@ -93,14 +93,14 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
                     uint codeLength;
                     if (runLength <= 63)
                     {
-                        code = this.GetTermCode(runLength, out codeLength, isWhiteRun);
+                        code = GetTermCode(runLength, out codeLength, isWhiteRun);
                         this.WriteCode(codeLength, code, compressedData);
                         x += (int)runLength;
                     }
                     else
                     {
-                        runLength = this.GetBestFittingMakeupRunLength(runLength);
-                        code = this.GetMakeupCode(runLength, out codeLength, isWhiteRun);
+                        runLength = GetBestFittingMakeupRunLength(runLength);
+                        code = GetMakeupCode(runLength, out codeLength, isWhiteRun);
                         this.WriteCode(codeLength, code, compressedData);
                         x += (int)runLength;
 

src/ImageSharp/Formats/Tiff/Compression/Compressors/T6BitCompressor.cs

@@ -61,12 +61,12 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
             {
                 Span<byte> row = pixelsAsGray.Slice(y * this.Width, this.Width);
                 uint a0 = 0;
-                uint a1 = row[0] == 0 ? 0 : this.FindRunEnd(row, 0);
-                uint b1 = referenceLine[0] == 0 ? 0 : this.FindRunEnd(referenceLine, 0);
+                uint a1 = row[0] == 0 ? 0 : FindRunEnd(row, 0);
+                uint b1 = referenceLine[0] == 0 ? 0 : FindRunEnd(referenceLine, 0);
 
                 while (true)
                 {
-                    uint b2 = this.FindRunEnd(referenceLine, b1);
+                    uint b2 = FindRunEnd(referenceLine, b1);
                     if (b2 < a1)
                     {
                         // Pass mode.
@@ -85,7 +85,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
                             d = -(int)(a1 - b1);
                         }
 
-                        if ((d >= -3) && (d <= 3))
+                        if (d is >= -3 and <= 3)
                         {
                             // Vertical mode.
                             (uint length, uint code) = VerticalCodes[d + 3];
@@ -97,7 +97,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
                             // Horizontal mode.
                             this.WriteCode(3, 1, compressedData);
 
-                            uint a2 = this.FindRunEnd(row, a1);
+                            uint a2 = FindRunEnd(row, a1);
                             if ((a0 + a1 == 0) || (row[(int)a0] != 0))
                             {
                                 this.WriteRun(a1 - a0, true, compressedData);
@@ -119,9 +119,9 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
                     }
 
                     byte thisPixel = row[(int)a0];
-                    a1 = this.FindRunEnd(row, a0, thisPixel);
-                    b1 = this.FindRunEnd(referenceLine, a0, (byte)~thisPixel);
-                    b1 = this.FindRunEnd(referenceLine, b1, thisPixel);
+                    a1 = FindRunEnd(row, a0, thisPixel);
+                    b1 = FindRunEnd(referenceLine, a0, (byte)~thisPixel);
+                    b1 = FindRunEnd(referenceLine, b1, thisPixel);
                 }
 
                 // This row is now the reference line.
@@ -149,14 +149,14 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
         /// <returns>The index of the first pixel at or after <paramref name="startIndex"/>
         /// that does not match <paramref name="color"/>, or the length of <paramref name="row"/>,
         /// whichever comes first.</returns>
-        private uint FindRunEnd(Span<byte> row, uint startIndex, byte? color = null)
+        private static uint FindRunEnd(Span<byte> row, uint startIndex, byte? color = null)
         {
             if (startIndex >= row.Length)
             {
                 return (uint)row.Length;
             }
 
-            byte colorValue = color.GetValueOrDefault(row[(int)startIndex]);
+            byte colorValue = color ?? row[(int)startIndex];
             for (int i = (int)startIndex; i < row.Length; i++)
             {
                 if (row[i] != colorValue)
@@ -188,13 +188,13 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
             uint codeLength;
             while (runLength > 63)
             {
-                uint makeupLength = this.GetBestFittingMakeupRunLength(runLength);
-                code = this.GetMakeupCode(makeupLength, out codeLength, isWhiteRun);
+                uint makeupLength = GetBestFittingMakeupRunLength(runLength);
+                code = GetMakeupCode(makeupLength, out codeLength, isWhiteRun);
                 this.WriteCode(codeLength, code, compressedData);
                 runLength -= makeupLength;
             }
 
-            code = this.GetTermCode(runLength, out codeLength, isWhiteRun);
+            code = GetTermCode(runLength, out codeLength, isWhiteRun);
             this.WriteCode(codeLength, code, compressedData);
         }
     }

src/ImageSharp/Formats/Tiff/Compression/Compressors/TiffCcittCompressor.cs

@@ -195,7 +195,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
             this.bitPosition = 0;
         }
 
-        private uint GetWhiteMakeupCode(uint runLength, out uint codeLength)
+        private static uint GetWhiteMakeupCode(uint runLength, out uint codeLength)
         {
             codeLength = 0;
 
@@ -244,7 +244,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
             return 0;
         }
 
-        private uint GetBlackMakeupCode(uint runLength, out uint codeLength)
+        private static uint GetBlackMakeupCode(uint runLength, out uint codeLength)
         {
             codeLength = 0;
 
@@ -275,7 +275,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
             return 0;
         }
 
-        private uint GetWhiteTermCode(uint runLength, out uint codeLength)
+        private static uint GetWhiteTermCode(uint runLength, out uint codeLength)
         {
             codeLength = 0;
 
@@ -312,7 +312,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
             return 0;
         }
 
-        private uint GetBlackTermCode(uint runLength, out uint codeLength)
+        private static uint GetBlackTermCode(uint runLength, out uint codeLength)
         {
             codeLength = 0;
 
@@ -390,7 +390,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
         /// </summary>
         /// <param name="runLength">A run length needing a makeup code</param>
         /// <returns>The makeup length for <paramref name="runLength"/>.</returns>
-        protected uint GetBestFittingMakeupRunLength(uint runLength)
+        protected static uint GetBestFittingMakeupRunLength(uint runLength)
         {
             DebugGuard.MustBeGreaterThanOrEqualTo(runLength, MakeupRunLength[0], nameof(runLength));
 
@@ -402,7 +402,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
                 }
             }
 
-            return MakeupRunLength[MakeupRunLength.Length - 1];
+            return MakeupRunLength[^1];
         }
 
         /// <summary>
@@ -413,14 +413,14 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
         /// <param name="isWhiteRun">If <c>true</c>, the run is of white pixels.
         /// If <c>false</c> the run is of black pixels</param>
         /// <returns>The terminating code for a run of length <paramref name="runLength"/></returns>
-        protected uint GetTermCode(uint runLength, out uint codeLength, bool isWhiteRun)
+        protected static uint GetTermCode(uint runLength, out uint codeLength, bool isWhiteRun)
         {
             if (isWhiteRun)
             {
-                return this.GetWhiteTermCode(runLength, out codeLength);
+                return GetWhiteTermCode(runLength, out codeLength);
             }
 
-            return this.GetBlackTermCode(runLength, out codeLength);
+            return GetBlackTermCode(runLength, out codeLength);
         }
 
         /// <summary>
@@ -431,14 +431,14 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
         /// <param name="isWhiteRun">If <c>true</c>, the run is of white pixels.
         /// If <c>false</c> the run is of black pixels</param>
         /// <returns>The makeup code for a run of length <paramref name="runLength"/></returns>
-        protected uint GetMakeupCode(uint runLength, out uint codeLength, bool isWhiteRun)
+        protected static uint GetMakeupCode(uint runLength, out uint codeLength, bool isWhiteRun)
         {
             if (isWhiteRun)
             {
-                return this.GetWhiteMakeupCode(runLength, out codeLength);
+                return GetWhiteMakeupCode(runLength, out codeLength);
             }
 
-            return this.GetBlackMakeupCode(runLength, out codeLength);
+            return GetBlackMakeupCode(runLength, out codeLength);
         }
 
         /// <summary>
@@ -494,12 +494,12 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
         /// <summary>
         /// Writes a image compressed with CCITT T6 to the stream.
         /// </summary>
-        /// <param name="pixelsAsGray">The pixels as 8-bit gray array.</param>
+        /// <param name="rows">The pixels as 8-bit gray array.</param>
         /// <param name="height">The strip height.</param>
-        public override void CompressStrip(Span<byte> pixelsAsGray, int height)
+        public override void CompressStrip(Span<byte> rows, int height)
         {
-            DebugGuard.IsTrue(pixelsAsGray.Length / height == this.Width, "Values must be equals");
-            DebugGuard.IsTrue(pixelsAsGray.Length % height == 0, "Values must be equals");
+            DebugGuard.IsTrue(rows.Length / height == this.Width, "Values must be equals");
+            DebugGuard.IsTrue(rows.Length % height == 0, "Values must be equals");
 
             this.compressedDataBuffer.Clear();
             Span<byte> compressedData = this.compressedDataBuffer.GetSpan();
@@ -507,7 +507,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors
             this.bytePosition = 0;
             this.bitPosition = 0;
 
-            this.CompressStrip(pixelsAsGray, height, compressedData);
+            this.CompressStrip(rows, height, compressedData);
 
             // Write the compressed data to the stream.
             int bytesToWrite = this.bitPosition != 0 ? this.bytePosition + 1 : this.bytePosition;

src/ImageSharp/Formats/Tiff/TiffBitsPerSample.cs

@@ -10,31 +10,6 @@ namespace SixLabors.ImageSharp.Formats.Tiff
     /// </summary>
     public readonly struct TiffBitsPerSample : IEquatable<TiffBitsPerSample>
     {
-        /// <summary>
-        /// The bits for the channel 0.
-        /// </summary>
-        public readonly ushort Channel0;
-
-        /// <summary>
-        /// The bits for the channel 1.
-        /// </summary>
-        public readonly ushort Channel1;
-
-        /// <summary>
-        /// The bits for the channel 2.
-        /// </summary>
-        public readonly ushort Channel2;
-
-        /// <summary>
-        /// The bits for the alpha channel.
-        /// </summary>
-        public readonly ushort Channel3;
-
-        /// <summary>
-        /// The number of channels.
-        /// </summary>
-        public readonly byte Channels;
-
         /// <summary>
         /// Initializes a new instance of the <see cref="TiffBitsPerSample"/> struct.
         /// </summary>
@@ -56,6 +31,53 @@ namespace SixLabors.ImageSharp.Formats.Tiff
             this.Channels += (byte)(this.Channel3 != 0 ? 1 : 0);
         }
 
+        /// <summary>
+        /// Gets the bits for the channel 0.
+        /// </summary>
+        public readonly ushort Channel0 { get; }
+
+        /// <summary>
+        /// Gets the bits for the channel 1.
+        /// </summary>
+        public readonly ushort Channel1 { get; }
+
+        /// <summary>
+        /// Gets the bits for the channel 2.
+        /// </summary>
+        public readonly ushort Channel2 { get; }
+
+        /// <summary>
+        /// Gets the bits for the alpha channel.
+        /// </summary>
+        public readonly ushort Channel3 { get; }
+
+        /// <summary>
+        /// Gets the number of channels.
+        /// </summary>
+        public readonly byte Channels { get; }
+
+        /// <summary>
+        /// Checks whether two <see cref="TiffBitsPerSample"/> structures are equal.
+        /// </summary>
+        /// <param name="left">The left hand <see cref="TiffBitsPerSample"/> operand.</param>
+        /// <param name="right">The right hand <see cref="TiffBitsPerSample"/> operand.</param>
+        /// <returns>
+        /// True if the <paramref name="left"/> parameter is equal to the <paramref name="right"/> parameter;
+        /// otherwise, false.
+        /// </returns>
+        public static bool operator ==(TiffBitsPerSample left, TiffBitsPerSample right) => left.Equals(right);
+
+        /// <summary>
+        /// Checks whether two <see cref="TiffBitsPerSample"/> structures are not equal.
+        /// </summary>
+        /// <param name="left">The left hand <see cref="TiffBitsPerSample"/> operand.</param>
+        /// <param name="right">The right hand <see cref="TiffBitsPerSample"/> operand.</param>
+        /// <returns>
+        /// True if the <paramref name="left"/> parameter is not equal to the <paramref name="right"/> parameter;
+        /// otherwise, false.
+        /// </returns>
+        public static bool operator !=(TiffBitsPerSample left, TiffBitsPerSample right) => !(left == right);
+
         /// <summary>
         /// Tries to parse a ushort array and convert it into a TiffBitsPerSample struct.
         /// </summary>

src/ImageSharp/Formats/Tiff/TiffEncoderCore.cs

@@ -73,7 +73,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff
         /// </summary>
         private const TiffPhotometricInterpretation DefaultPhotometricInterpretation = TiffPhotometricInterpretation.Rgb;
 
-        private readonly List<(long, uint)> frameMarkers = new List<(long, uint)>();
+        private readonly List<(long, uint)> frameMarkers = new();
 
         /// <summary>
         /// Initializes a new instance of the <see cref="TiffEncoderCore"/> class.
@@ -148,15 +148,15 @@ namespace SixLabors.ImageSharp.Formats.Tiff
             // Make sure, the Encoder options makes sense in combination with each other.
             this.SanitizeAndSetEncoderOptions(bitsPerPixel, image.PixelType.BitsPerPixel, photometricInterpretation, compression, predictor);
 
-            using var writer = new TiffStreamWriter(stream);
-            long ifdMarker = this.WriteHeader(writer);
+            using TiffStreamWriter writer = new(stream);
+            long ifdMarker = WriteHeader(writer);
 
             Image<TPixel> metadataImage = image;
             foreach (ImageFrame<TPixel> frame in image.Frames)
             {
                 cancellationToken.ThrowIfCancellationRequested();
 
-                var subfileType = (TiffNewSubfileType)(frame.Metadata.ExifProfile?.GetValue(ExifTag.SubfileType)?.Value ?? (int)TiffNewSubfileType.FullImage);
+                TiffNewSubfileType subfileType = (TiffNewSubfileType)(frame.Metadata.ExifProfile?.GetValue(ExifTag.SubfileType)?.Value ?? (int)TiffNewSubfileType.FullImage);
 
                 ifdMarker = this.WriteFrame(writer, frame, image.Metadata, metadataImage, ifdMarker);
                 metadataImage = null;
@@ -178,7 +178,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff
         /// <returns>
         /// The marker to write the first IFD offset.
         /// </returns>
-        public long WriteHeader(TiffStreamWriter writer)
+        public static long WriteHeader(TiffStreamWriter writer)
         {
             writer.Write(ByteOrderMarker);
             writer.Write(TiffConstants.HeaderMagicNumber);
@@ -214,7 +214,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff
                 this.compressionLevel,
                 this.HorizontalPredictor == TiffPredictor.Horizontal ? this.HorizontalPredictor.Value : TiffPredictor.None);
 
-            var entriesCollector = new TiffEncoderEntriesCollector();
+            TiffEncoderEntriesCollector entriesCollector = new();
             using TiffBaseColorWriter<TPixel> colorWriter = TiffColorWriterFactory.Create(
                 this.PhotometricInterpretation,
                 frame,
@@ -224,7 +224,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff
                 entriesCollector,
                 (int)this.BitsPerPixel);
 
-            int rowsPerStrip = this.CalcRowsPerStrip(frame.Height, colorWriter.BytesPerRow, this.CompressionType);
+            int rowsPerStrip = CalcRowsPerStrip(frame.Height, colorWriter.BytesPerRow, this.CompressionType);
 
             colorWriter.Write(compressor, rowsPerStrip);
 
@@ -248,7 +248,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff
         /// <param name="bytesPerRow">The number of bytes per row.</param>
         /// <param name="compression">The compression used.</param>
         /// <returns>Number of rows per strip.</returns>
-        private int CalcRowsPerStrip(int height, int bytesPerRow, TiffCompression? compression)
+        private static int CalcRowsPerStrip(int height, int bytesPerRow, TiffCompression? compression)
         {
             DebugGuard.MustBeGreaterThan(height, 0, nameof(height));
             DebugGuard.MustBeGreaterThan(bytesPerRow, 0, nameof(bytesPerRow));
@@ -290,7 +290,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff
             }
 
             uint dataOffset = (uint)writer.Position + (uint)(6 + (entries.Count * 12));
-            var largeDataBlocks = new List<byte[]>();
+            List<byte[]> largeDataBlocks = new();
 
             entries.Sort((a, b) => (ushort)a.Tag - (ushort)b.Tag);
 
@@ -440,13 +440,6 @@ namespace SixLabors.ImageSharp.Formats.Tiff
         }
 
         public static bool IsOneBitCompression(TiffCompression? compression)
-        {
-            if (compression is TiffCompression.Ccitt1D or TiffCompression.CcittGroup3Fax or TiffCompression.CcittGroup4Fax)
-            {
-                return true;
-            }
-
-            return false;
-        }
+            => compression is TiffCompression.Ccitt1D or TiffCompression.CcittGroup3Fax or TiffCompression.CcittGroup4Fax;
     }
 }

src/ImageSharp/Formats/Tiff/Writers/TiffStreamWriter.cs

@@ -28,7 +28,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Writers
         /// <summary>
         /// Gets a value indicating whether the architecture is little-endian.
         /// </summary>
-        public bool IsLittleEndian => BitConverter.IsLittleEndian;
+        public static bool IsLittleEndian => BitConverter.IsLittleEndian;
 
         /// <summary>
         /// Gets the current position within the stream.
@@ -75,7 +75,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Writers
         /// <param name="value">The two-byte unsigned integer to write.</param>
         public void Write(ushort value)
         {
-            if (this.IsLittleEndian)
+            if (IsLittleEndian)
             {
                 BinaryPrimitives.WriteUInt16LittleEndian(this.buffer, value);
             }
@@ -93,7 +93,7 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Writers
         /// <param name="value">The four-byte unsigned integer to write.</param>
         public void Write(uint value)
         {
-            if (this.IsLittleEndian)
+            if (IsLittleEndian)
             {
                 BinaryPrimitives.WriteUInt32LittleEndian(this.buffer, value);
             }

src/ImageSharp/Formats/Webp/BitReader/Vp8BitReader.cs

@@ -133,7 +133,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.BitReader
             uint split = this.range >> 1;
             ulong value = this.value >> pos;
             ulong mask = (split - value) >> 31;  // -1 or 0
-            this.bits -= 1;
+            this.bits--;
             this.range = (this.range + (uint)mask) | 1;
             this.value -= ((split + 1) & mask) << pos;
 
@@ -189,7 +189,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.BitReader
             {
                 ulong inBits = BinaryPrimitives.ReadUInt64LittleEndian(this.Data.Memory.Span.Slice((int)this.pos, 8));
                 this.pos += BitsCount >> 3;
-                ulong bits = this.ByteSwap64(inBits);
+                ulong bits = ByteSwap64(inBits);
                 bits >>= 64 - BitsCount;
                 this.value = bits | (this.value << BitsCount);
                 this.bits += BitsCount;
@@ -221,7 +221,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.BitReader
         }
 
         [MethodImpl(InliningOptions.ShortMethod)]
-        private ulong ByteSwap64(ulong x)
+        private static ulong ByteSwap64(ulong x)
         {
             x = ((x & 0xffffffff00000000ul) >> 32) | ((x & 0x00000000fffffffful) << 32);
             x = ((x & 0xffff0000ffff0000ul) >> 16) | ((x & 0x0000ffff0000fffful) << 16);

src/ImageSharp/Formats/Webp/BitWriter/BitWriterBase.cs

@@ -5,7 +5,6 @@ using System;
 using System.Buffers.Binary;
 using System.IO;
 using SixLabors.ImageSharp.Metadata.Profiles.Exif;
-using SixLabors.ImageSharp.Metadata.Profiles.Icc;
 using SixLabors.ImageSharp.Metadata.Profiles.Xmp;
 
 namespace SixLabors.ImageSharp.Formats.Webp.BitWriter
@@ -38,6 +37,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.BitWriter
         /// Initializes a new instance of the <see cref="BitWriterBase"/> class.
         /// Used internally for cloning.
         /// </summary>
+        /// <param name="buffer">The byte buffer.</param>
         private protected BitWriterBase(byte[] buffer) => this.buffer = buffer;
 
         public byte[] Buffer => this.buffer;
@@ -102,12 +102,10 @@ namespace SixLabors.ImageSharp.Formats.Webp.BitWriter
         /// </summary>
         /// <param name="metadataBytes">The metadata profile bytes.</param>
         /// <returns>The metadata chunk size in bytes.</returns>
-        protected uint MetadataChunkSize(byte[] metadataBytes)
+        protected static uint MetadataChunkSize(byte[] metadataBytes)
         {
             uint metaSize = (uint)metadataBytes.Length;
-            uint metaChunkSize = WebpConstants.ChunkHeaderSize + metaSize + (metaSize & 1);
-
-            return metaChunkSize;
+            return WebpConstants.ChunkHeaderSize + metaSize + (metaSize & 1);
         }
 
         /// <summary>
@@ -115,12 +113,10 @@ namespace SixLabors.ImageSharp.Formats.Webp.BitWriter
         /// </summary>
         /// <param name="alphaBytes">The alpha chunk bytes.</param>
         /// <returns>The alpha data chunk size in bytes.</returns>
-        protected uint AlphaChunkSize(Span<byte> alphaBytes)
+        protected static uint AlphaChunkSize(Span<byte> alphaBytes)
         {
             uint alphaSize = (uint)alphaBytes.Length + 1;
-            uint alphaChunkSize = WebpConstants.ChunkHeaderSize + alphaSize + (alphaSize & 1);
-
-            return alphaChunkSize;
+            return WebpConstants.ChunkHeaderSize + alphaSize + (alphaSize & 1);
         }
 
         /// <summary>

src/ImageSharp/Formats/Webp/BitWriter/Vp8BitWriter.cs

@@ -433,27 +433,27 @@ namespace SixLabors.ImageSharp.Formats.Webp.BitWriter
             {
                 isVp8X = true;
                 exifBytes = exifProfile.ToByteArray();
-                riffSize += this.MetadataChunkSize(exifBytes);
+                riffSize += MetadataChunkSize(exifBytes);
             }
 
             if (xmpProfile != null)
             {
                 isVp8X = true;
                 xmpBytes = xmpProfile.Data;
-                riffSize += this.MetadataChunkSize(xmpBytes);
+                riffSize += MetadataChunkSize(xmpBytes);
             }
 
             if (iccProfile != null)
             {
                 isVp8X = true;
                 iccProfileBytes = iccProfile.ToByteArray();
-                riffSize += this.MetadataChunkSize(iccProfileBytes);
+                riffSize += MetadataChunkSize(iccProfileBytes);
             }
 
             if (hasAlpha)
             {
                 isVp8X = true;
-                riffSize += this.AlphaChunkSize(alphaData);
+                riffSize += AlphaChunkSize(alphaData);
             }
 
             if (isVp8X)

src/ImageSharp/Formats/Webp/BitWriter/Vp8LBitWriter.cs

@@ -150,21 +150,21 @@ namespace SixLabors.ImageSharp.Formats.Webp.BitWriter
             {
                 isVp8X = true;
                 exifBytes = exifProfile.ToByteArray();
-                riffSize += this.MetadataChunkSize(exifBytes);
+                riffSize += MetadataChunkSize(exifBytes);
             }
 
             if (xmpProfile != null)
             {
                 isVp8X = true;
                 xmpBytes = xmpProfile.Data;
-                riffSize += this.MetadataChunkSize(xmpBytes);
+                riffSize += MetadataChunkSize(xmpBytes);
             }
 
             if (iccProfile != null)
             {
                 isVp8X = true;
                 iccBytes = iccProfile.ToByteArray();
-                riffSize += this.MetadataChunkSize(iccBytes);
+                riffSize += MetadataChunkSize(iccBytes);
             }
 
             if (isVp8X)

src/ImageSharp/Formats/Webp/Lossless/Vp8LEncoder.cs

@@ -344,7 +344,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
             foreach (CrunchConfig crunchConfig in crunchConfigs)
             {
                 bgra.CopyTo(encodedData);
-                bool useCache = true;
+                const bool useCache = true;
                 this.UsePalette = crunchConfig.EntropyIdx is EntropyIx.Palette or EntropyIx.PaletteAndSpatial;
                 this.UseSubtractGreenTransform = crunchConfig.EntropyIdx is EntropyIx.SubGreen or EntropyIx.SpatialSubGreen;
                 this.UsePredictorTransform = crunchConfig.EntropyIdx is EntropyIx.Spatial or EntropyIx.SpatialSubGreen;
@@ -418,7 +418,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                 if (isFirstConfig || this.bitWriter.NumBytes() < bestSize)
                 {
                     bestSize = this.bitWriter.NumBytes();
-                    this.BitWriterSwap(ref this.bitWriter, ref bitWriterBest);
+                    BitWriterSwap(ref this.bitWriter, ref bitWriterBest);
                 }
 
                 // Reset the bit writer for the following iteration if any.
@@ -430,7 +430,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                 isFirstConfig = false;
             }
 
-            this.BitWriterSwap(ref bitWriterBest, ref this.bitWriter);
+            BitWriterSwap(ref bitWriterBest, ref this.bitWriter);
         }
 
         /// <summary>
@@ -485,7 +485,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
             EntropyIx entropyIdx = this.AnalyzeEntropy(bgra, width, height, usePalette, this.PaletteSize, this.TransformBits, out redAndBlueAlwaysZero);
 
             bool doNotCache = false;
-            var crunchConfigs = new List<CrunchConfig>();
+            List<CrunchConfig> crunchConfigs = new();
 
             if (this.method == WebpEncodingMethod.BestQuality && this.quality == 100)
             {
@@ -540,7 +540,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
             Span<uint> bgra = this.EncodedData.GetSpan();
             int histogramImageXySize = LosslessUtils.SubSampleSize(width, this.HistoBits) * LosslessUtils.SubSampleSize(height, this.HistoBits);
             ushort[] histogramSymbols = new ushort[histogramImageXySize];
-            var huffTree = new HuffmanTree[3 * WebpConstants.CodeLengthCodes];
+            HuffmanTree[] huffTree = new HuffmanTree[3 * WebpConstants.CodeLengthCodes];
             for (int i = 0; i < huffTree.Length; i++)
             {
                 huffTree[i] = default;
@@ -583,8 +583,8 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                 Vp8LBackwardRefs refsTmp = this.Refs[refsBest.Equals(this.Refs[0]) ? 1 : 0];
 
                 this.bitWriter.Reset(bwInit);
-                var tmpHisto = new Vp8LHistogram(cacheBits);
-                var histogramImage = new List<Vp8LHistogram>(histogramImageXySize);
+                Vp8LHistogram tmpHisto = new(cacheBits);
+                List<Vp8LHistogram> histogramImage = new(histogramImageXySize);
                 for (int i = 0; i < histogramImageXySize; i++)
                 {
                     histogramImage.Add(new Vp8LHistogram(cacheBits));
@@ -596,7 +596,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                 // Create Huffman bit lengths and codes for each histogram image.
                 int histogramImageSize = histogramImage.Count;
                 int bitArraySize = 5 * histogramImageSize;
-                var huffmanCodes = new HuffmanTreeCode[bitArraySize];
+                HuffmanTreeCode[] huffmanCodes = new HuffmanTreeCode[bitArraySize];
                 for (int i = 0; i < huffmanCodes.Length; i++)
                 {
                     huffmanCodes[i] = default;
@@ -657,7 +657,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                     }
                 }
 
-                var tokens = new HuffmanTreeToken[maxTokens];
+                HuffmanTreeToken[] tokens = new HuffmanTreeToken[maxTokens];
                 for (int i = 0; i < tokens.Length; i++)
                 {
                     tokens[i] = new HuffmanTreeToken();
@@ -767,13 +767,13 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
             int cacheBits = 0;
             ushort[] histogramSymbols = new ushort[1]; // Only one tree, one symbol.
 
-            var huffmanCodes = new HuffmanTreeCode[5];
+            HuffmanTreeCode[] huffmanCodes = new HuffmanTreeCode[5];
             for (int i = 0; i < huffmanCodes.Length; i++)
             {
                 huffmanCodes[i] = default;
             }
 
-            var huffTree = new HuffmanTree[3UL * WebpConstants.CodeLengthCodes];
+            HuffmanTree[] huffTree = new HuffmanTree[3UL * WebpConstants.CodeLengthCodes];
             for (int i = 0; i < huffTree.Length; i++)
             {
                 huffTree[i] = default;
@@ -794,7 +794,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                 refsTmp1,
                 refsTmp2);
 
-            var histogramImage = new List<Vp8LHistogram>()
+            List<Vp8LHistogram> histogramImage = new()
             {
                 new(cacheBits)
             };
@@ -819,7 +819,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                 }
             }
 
-            var tokens = new HuffmanTreeToken[maxTokens];
+            HuffmanTreeToken[] tokens = new HuffmanTreeToken[maxTokens];
             for (int i = 0; i < tokens.Length; i++)
             {
                 tokens[i] = new HuffmanTreeToken();
@@ -842,8 +842,8 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
             int count = 0;
             Span<int> symbols = this.scratch.AsSpan(0, 2);
             symbols.Clear();
-            int maxBits = 8;
-            int maxSymbol = 1 << maxBits;
+            const int maxBits = 8;
+            const int maxSymbol = 1 << maxBits;
 
             // Check whether it's a small tree.
             for (int i = 0; i < huffmanCode.NumSymbols && count < 3; i++)
@@ -896,7 +896,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
             int i;
             byte[] codeLengthBitDepth = new byte[WebpConstants.CodeLengthCodes];
             short[] codeLengthBitDepthSymbols = new short[WebpConstants.CodeLengthCodes];
-            var huffmanCode = new HuffmanTreeCode
+            HuffmanTreeCode huffmanCode = new()
             {
                 NumSymbols = WebpConstants.CodeLengthCodes,
                 CodeLengths = codeLengthBitDepth,
@@ -1099,7 +1099,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                     uint pix = currentRow[x];
                     uint pixDiff = LosslessUtils.SubPixels(pix, pixPrev);
                     pixPrev = pix;
-                    if (pixDiff == 0 || (prevRow != null && pix == prevRow[x]))
+                    if (pixDiff == 0 || (prevRow.Length > 0 && pix == prevRow[x]))
                     {
                         continue;
                     }
@@ -1147,7 +1147,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
             histo[(int)HistoIx.HistoBluePred * 256]++;
             histo[(int)HistoIx.HistoAlphaPred * 256]++;
 
-            var bitEntropy = new Vp8LBitEntropy();
+            Vp8LBitEntropy bitEntropy = new();
             for (int j = 0; j < (int)HistoIx.HistoTotal; j++)
             {
                 bitEntropy.Init();
@@ -1239,7 +1239,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
         private bool AnalyzeAndCreatePalette(ReadOnlySpan<uint> bgra, int width, int height)
         {
             Span<uint> palette = this.Palette.Memory.Span;
-            this.PaletteSize = this.GetColorPalette(bgra, width, height, palette);
+            this.PaletteSize = GetColorPalette(bgra, width, height, palette);
             if (this.PaletteSize > WebpConstants.MaxPaletteSize)
             {
                 this.PaletteSize = 0;
@@ -1265,9 +1265,9 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
         /// <param name="height">The image height.</param>
         /// <param name="palette">The span to store the palette into.</param>
         /// <returns>The number of palette entries.</returns>
-        private int GetColorPalette(ReadOnlySpan<uint> bgra, int width, int height, Span<uint> palette)
+        private static int GetColorPalette(ReadOnlySpan<uint> bgra, int width, int height, Span<uint> palette)
         {
-            var colors = new HashSet<uint>();
+            HashSet<uint> colors = new();
             for (int y = 0; y < height; y++)
             {
                 ReadOnlySpan<uint> bgraRow = bgra.Slice(y * width, width);
@@ -1547,7 +1547,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
         /// <returns>True, if the palette has no monotonous deltas.</returns>
         private static bool PaletteHasNonMonotonousDeltas(Span<uint> palette, int numColors)
         {
-            uint predict = 0x000000;
+            const uint predict = 0x000000;
             byte signFound = 0x00;
             for (int i = 0; i < numColors; i++)
             {
@@ -1637,7 +1637,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
 
             // Create Huffman trees.
             bool[] bufRle = new bool[maxNumSymbols];
-            var huffTree = new HuffmanTree[3 * maxNumSymbols];
+            HuffmanTree[] huffTree = new HuffmanTree[3 * maxNumSymbols];
             for (int i = 0; i < huffTree.Length; i++)
             {
                 huffTree[i] = default;
@@ -1665,7 +1665,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
         private static uint PaletteColorDistance(uint col1, uint col2)
         {
             uint diff = LosslessUtils.SubPixels(col1, col2);
-            uint moreWeightForRGBThanForAlpha = 9;
+            const uint moreWeightForRGBThanForAlpha = 9;
             uint score = PaletteComponentDistance((diff >> 0) & 0xff);
             score += PaletteComponentDistance((diff >> 8) & 0xff);
             score += PaletteComponentDistance((diff >> 16) & 0xff);
@@ -1730,7 +1730,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
         }
 
         [MethodImpl(InliningOptions.ShortMethod)]
-        private void BitWriterSwap(ref Vp8LBitWriter src, ref Vp8LBitWriter dst)
+        private static void BitWriterSwap(ref Vp8LBitWriter src, ref Vp8LBitWriter dst)
         {
             Vp8LBitWriter tmp = src;
             src = dst;

src/ImageSharp/Formats/Webp/Lossless/WebpLosslessDecoder.cs

@@ -96,7 +96,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
         public void Decode<TPixel>(Buffer2D<TPixel> pixels, int width, int height)
             where TPixel : unmanaged, IPixel<TPixel>
         {
-            using (var decoder = new Vp8LDecoder(width, height, this.memoryAllocator))
+            using (Vp8LDecoder decoder = new(width, height, this.memoryAllocator))
             {
                 this.DecodeImageStream(decoder, width, height, true);
                 this.DecodeImageData(decoder, decoder.Pixels.Memory.Span);
@@ -169,7 +169,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                 decoder.Metadata.ColorCacheSize = 0;
             }
 
-            this.UpdateDecoder(decoder, transformXSize, transformYSize);
+            UpdateDecoder(decoder, transformXSize, transformYSize);
             if (isLevel0)
             {
                 // level 0 complete.
@@ -207,7 +207,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
 
         public void DecodeImageData(Vp8LDecoder decoder, Span<uint> pixelData)
         {
-            int lastPixel = 0;
+            const int lastPixel = 0;
             int width = decoder.Width;
             int height = decoder.Height;
             int row = lastPixel / width;
@@ -233,7 +233,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                 if (hTreeGroup[0].IsTrivialCode)
                 {
                     pixelData[decodedPixels] = hTreeGroup[0].LiteralArb;
-                    this.AdvanceByOne(ref col, ref row, width, colorCache, ref decodedPixels, pixelData, ref lastCached);
+                    AdvanceByOne(ref col, ref row, width, colorCache, ref decodedPixels, pixelData, ref lastCached);
                     continue;
                 }
 
@@ -248,7 +248,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
 
                     if (code == PackedNonLiteralCode)
                     {
-                        this.AdvanceByOne(ref col, ref row, width, colorCache, ref decodedPixels, pixelData, ref lastCached);
+                        AdvanceByOne(ref col, ref row, width, colorCache, ref decodedPixels, pixelData, ref lastCached);
                         continue;
                     }
                 }
@@ -283,7 +283,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                         pixelData[decodedPixels] = (uint)(((byte)alpha << 24) | ((byte)red << 16) | ((byte)code << 8) | (byte)blue);
                     }
 
-                    this.AdvanceByOne(ref col, ref row, width, colorCache, ref decodedPixels, pixelData, ref lastCached);
+                    AdvanceByOne(ref col, ref row, width, colorCache, ref decodedPixels, pixelData, ref lastCached);
                 }
                 else if (code < lenCodeLimit)
                 {
@@ -333,7 +333,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                     }
 
                     pixelData[decodedPixels] = colorCache.Lookup(key);
-                    this.AdvanceByOne(ref col, ref row, width, colorCache, ref decodedPixels, pixelData, ref lastCached);
+                    AdvanceByOne(ref col, ref row, width, colorCache, ref decodedPixels, pixelData, ref lastCached);
                 }
                 else
                 {
@@ -342,7 +342,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
             }
         }
 
-        private void AdvanceByOne(ref int col, ref int row, int width, ColorCache colorCache, ref int decodedPixels, Span<uint> pixelData, ref int lastCached)
+        private static void AdvanceByOne(ref int col, ref int row, int width, ColorCache colorCache, ref int decodedPixels, Span<uint> pixelData, ref int lastCached)
         {
             col++;
             decodedPixels++;
@@ -414,8 +414,8 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
             }
 
             int tableSize = TableSize[colorCacheBits];
-            var huffmanTables = new HuffmanCode[numHTreeGroups * tableSize];
-            var hTreeGroups = new HTreeGroup[numHTreeGroups];
+            HuffmanCode[] huffmanTables = new HuffmanCode[numHTreeGroups * tableSize];
+            HTreeGroup[] hTreeGroups = new HTreeGroup[numHTreeGroups];
             Span<HuffmanCode> huffmanTable = huffmanTables.AsSpan();
             int[] codeLengths = new int[maxAlphabetSize];
             for (int i = 0; i < numHTreeGroupsMax; i++)
@@ -488,7 +488,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                 hTreeGroup.UsePackedTable = !hTreeGroup.IsTrivialCode && maxBits < HuffmanUtils.HuffmanPackedBits;
                 if (hTreeGroup.UsePackedTable)
                 {
-                    this.BuildPackedTable(hTreeGroup);
+                    BuildPackedTable(hTreeGroup);
                 }
             }
 
@@ -546,9 +546,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                 this.ReadHuffmanCodeLengths(table, codeLengthCodeLengths, alphabetSize, codeLengths);
             }
 
-            int size = HuffmanUtils.BuildHuffmanTable(table, HuffmanUtils.HuffmanTableBits, codeLengths, alphabetSize);
-
-            return size;
+            return HuffmanUtils.BuildHuffmanTable(table, HuffmanUtils.HuffmanTableBits, codeLengths, alphabetSize);
         }
 
         private void ReadHuffmanCodeLengths(Span<HuffmanCode> table, int[] codeLengthCodeLengths, int numSymbols, int[] codeLengths)
@@ -622,8 +620,8 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
         /// <param name="decoder">Vp8LDecoder where the transformations will be stored.</param>
         private void ReadTransformation(int xSize, int ySize, Vp8LDecoder decoder)
         {
-            var transformType = (Vp8LTransformType)this.bitReader.ReadValue(2);
-            var transform = new Vp8LTransform(transformType, xSize, ySize);
+            Vp8LTransformType transformType = (Vp8LTransformType)this.bitReader.ReadValue(2);
+            Vp8LTransform transform = new(transformType, xSize, ySize);
 
             // Each transform is allowed to be used only once.
             foreach (Vp8LTransform decoderTransform in decoder.Transforms)
@@ -643,11 +641,23 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
                     // The transform data contains color table size and the entries in the color table.
                     // 8 bit value for color table size.
                     uint numColors = this.bitReader.ReadValue(8) + 1;
-                    int bits = numColors > 16 ? 0
-                                     : numColors > 4 ? 1
-                                     : numColors > 2 ? 2
-                                     : 3;
-                    transform.Bits = bits;
+                    if (numColors > 16)
+                    {
+                        transform.Bits = 0;
+                    }
+                    else if (numColors > 4)
+                    {
+                        transform.Bits = 1;
+                    }
+                    else if (numColors > 2)
+                    {
+                        transform.Bits = 2;
+                    }
+                    else
+                    {
+                        transform.Bits = 3;
+                    }
+
                     using (IMemoryOwner<uint> colorMap = this.DecodeImageStream(decoder, (int)numColors, 1, false))
                     {
                         int finalNumColors = 1 << (8 >> transform.Bits);
@@ -660,15 +670,13 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
 
                 case Vp8LTransformType.PredictorTransform:
                 case Vp8LTransformType.CrossColorTransform:
-                {
+
                     // The first 3 bits of prediction data define the block width and height in number of bits.
                     transform.Bits = (int)this.bitReader.ReadValue(3) + 2;
                     int blockWidth = LosslessUtils.SubSampleSize(transform.XSize, transform.Bits);
                     int blockHeight = LosslessUtils.SubSampleSize(transform.YSize, transform.Bits);
-                    IMemoryOwner<uint> transformData = this.DecodeImageStream(decoder, blockWidth, blockHeight, false);
-                    transform.Data = transformData;
+                    transform.Data = this.DecodeImageStream(decoder, blockWidth, blockHeight, false);
                     break;
-                }
             }
 
             decoder.Transforms.Add(transform);
@@ -687,8 +695,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
             for (int i = transforms.Count - 1; i >= 0; i--)
             {
                 Vp8LTransform transform = transforms[i];
-                Vp8LTransformType transformType = transform.TransformType;
-                switch (transformType)
+                switch (transform.TransformType)
                 {
                     case Vp8LTransformType.PredictorTransform:
                         using (IMemoryOwner<uint> output = memoryAllocator.Allocate<uint>(pixelData.Length, AllocationOptions.Clean))
@@ -806,7 +813,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
             dec.ExtractPalettedAlphaRows(row > lastRow ? lastRow : row);
         }
 
-        private void UpdateDecoder(Vp8LDecoder decoder, int width, int height)
+        private static void UpdateDecoder(Vp8LDecoder decoder, int width, int height)
         {
             int numBits = decoder.Metadata.HuffmanSubSampleBits;
             decoder.Width = width;
@@ -831,7 +838,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
             return code.Value;
         }
 
-        private void BuildPackedTable(HTreeGroup hTreeGroup)
+        private static void BuildPackedTable(HTreeGroup hTreeGroup)
         {
             for (uint code = 0; code < HuffmanUtils.HuffmanPackedTableSize; code++)
             {
@@ -859,6 +866,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossless
         /// Decodes the next Huffman code from the bit-stream.
         /// FillBitWindow() needs to be called at minimum every second call to ReadSymbol, in order to pre-fetch enough bits.
         /// </summary>
+        /// <param name="table">The Huffman table.</param>
         private uint ReadSymbol(Span<HuffmanCode> table)
         {
             uint val = (uint)this.bitReader.PrefetchBits();

src/ImageSharp/Formats/Webp/Lossy/Vp8EncIterator.cs

@@ -34,7 +34,9 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
         /// </summary>
         private readonly int predsWidth;
 
-        // Array to record the position of the top sample to pass to the prediction functions.
+        /// <summary>
+        /// Array to record the position of the top sample to pass to the prediction functions.
+        /// </summary>
         private readonly byte[] vp8TopLeftI4 =
         {
             17, 21, 25, 29,
@@ -46,9 +48,6 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
         private int currentMbIdx;
 
         private int nzIdx;
-
-        private int predIdx;
-
         private int yTopIdx;
 
         private int uvTopIdx;
@@ -69,7 +68,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             this.yTopIdx = 0;
             this.uvTopIdx = 0;
             this.predsWidth = (4 * mbw) + 1;
-            this.predIdx = this.predsWidth;
+            this.PredIdx = this.predsWidth;
             this.YuvIn = new byte[WebpConstants.Bps * 16];
             this.YuvOut = new byte[WebpConstants.Bps * 16];
             this.YuvOut2 = new byte[WebpConstants.Bps * 16];
@@ -85,7 +84,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             this.Scratch3 = new int[16];
 
             // To match the C initial values of the reference implementation, initialize all with 204.
-            byte defaultInitVal = 204;
+            const byte defaultInitVal = 204;
             this.YuvIn.AsSpan().Fill(defaultInitVal);
             this.YuvOut.AsSpan().Fill(defaultInitVal);
             this.YuvOut2.AsSpan().Fill(defaultInitVal);
@@ -160,7 +159,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
         /// <summary>
         /// Gets the current start index of the intra mode predictors.
         /// </summary>
-        public int PredIdx => this.predIdx;
+        public int PredIdx { get; private set; }
 
         /// <summary>
         /// Gets the non-zero pattern.
@@ -238,7 +237,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
 
         public void Init() => this.Reset();
 
-        public void InitFilter()
+        public static void InitFilter()
         {
             // TODO: add support for autofilter
         }
@@ -299,9 +298,9 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             Span<byte> yuvIn = this.YuvIn.AsSpan(YOffEnc);
             Span<byte> uIn = this.YuvIn.AsSpan(UOffEnc);
             Span<byte> vIn = this.YuvIn.AsSpan(VOffEnc);
-            this.ImportBlock(ySrc, yStride, yuvIn, w, h, 16);
-            this.ImportBlock(uSrc, uvStride, uIn, uvw, uvh, 8);
-            this.ImportBlock(vSrc, uvStride, vIn, uvw, uvh, 8);
+            ImportBlock(ySrc, yStride, yuvIn, w, h, 16);
+            ImportBlock(uSrc, uvStride, uIn, uvw, uvh, 8);
+            ImportBlock(vSrc, uvStride, vIn, uvw, uvh, 8);
 
             if (!importBoundarySamples)
             {
@@ -331,9 +330,9 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                     vLeft[0] = v[uvStartIdx - 1 - uvStride];
                 }
 
-                this.ImportLine(y[(yStartIdx - 1)..], yStride, yLeft[1..], h, 16);
-                this.ImportLine(u[(uvStartIdx - 1)..], uvStride, uLeft[1..], uvh, 8);
-                this.ImportLine(v[(uvStartIdx - 1)..], uvStride, vLeft[1..], uvh, 8);
+                ImportLine(y[(yStartIdx - 1)..], yStride, yLeft[1..], h, 16);
+                ImportLine(u[(uvStartIdx - 1)..], uvStride, uLeft[1..], uvh, 8);
+                ImportLine(v[(uvStartIdx - 1)..], uvStride, vLeft[1..], uvh, 8);
             }
 
             Span<byte> yTop = this.YTop.AsSpan(this.yTopIdx, 16);
@@ -344,9 +343,9 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             }
             else
             {
-                this.ImportLine(y[(yStartIdx - yStride)..], 1, yTop, w, 16);
-                this.ImportLine(u[(uvStartIdx - uvStride)..], 1, this.UvTop.AsSpan(this.uvTopIdx, 8), uvw, 8);
-                this.ImportLine(v[(uvStartIdx - uvStride)..], 1, this.UvTop.AsSpan(this.uvTopIdx + 8, 8), uvw, 8);
+                ImportLine(y[(yStartIdx - yStride)..], 1, yTop, w, 16);
+                ImportLine(u[(uvStartIdx - uvStride)..], 1, this.UvTop.AsSpan(this.uvTopIdx, 8), uvw, 8);
+                ImportLine(v[(uvStartIdx - uvStride)..], 1, this.UvTop.AsSpan(this.uvTopIdx + 8, 8), uvw, 8);
             }
         }
 
@@ -386,7 +385,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
 
         public int MbAnalyzeBestIntra16Mode()
         {
-            int maxMode = MaxIntra16Mode;
+            const int maxMode = MaxIntra16Mode;
             int mode;
             int bestAlpha = DefaultAlpha;
             int bestMode = 0;
@@ -394,7 +393,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             this.MakeLuma16Preds();
             for (mode = 0; mode < maxMode; mode++)
             {
-                var histo = new Vp8Histogram();
+                Vp8Histogram histo = new();
                 histo.CollectHistogram(this.YuvIn.AsSpan(YOffEnc), this.YuvP.AsSpan(Vp8Encoding.Vp8I16ModeOffsets[mode]), 0, 16);
                 int alpha = histo.GetAlpha();
                 if (alpha > bestAlpha)
@@ -411,15 +410,15 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
         public int MbAnalyzeBestIntra4Mode(int bestAlpha)
         {
             byte[] modes = new byte[16];
-            int maxMode = MaxIntra4Mode;
-            var totalHisto = new Vp8Histogram();
+            const int maxMode = MaxIntra4Mode;
+            Vp8Histogram totalHisto = new();
             int curHisto = 0;
             this.StartI4();
             do
             {
                 int mode;
                 int bestModeAlpha = DefaultAlpha;
-                var histos = new Vp8Histogram[2];
+                Vp8Histogram[] histos = new Vp8Histogram[2];
                 Span<byte> src = this.YuvIn.AsSpan(YOffEnc + WebpLookupTables.Vp8Scan[this.I4]);
 
                 this.MakeIntra4Preds();
@@ -459,13 +458,13 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             int bestAlpha = DefaultAlpha;
             int smallestAlpha = 0;
             int bestMode = 0;
-            int maxMode = MaxUvMode;
+            const int maxMode = MaxUvMode;
             int mode;
 
             this.MakeChroma8Preds();
             for (mode = 0; mode < maxMode; ++mode)
             {
-                var histo = new Vp8Histogram();
+                Vp8Histogram histo = new();
                 histo.CollectHistogram(this.YuvIn.AsSpan(UOffEnc), this.YuvP.AsSpan(Vp8Encoding.Vp8UvModeOffsets[mode]), 16, 16 + 4 + 4);
                 int alpha = histo.GetAlpha();
                 if (alpha > bestAlpha)
@@ -487,7 +486,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
 
         public void SetIntra16Mode(int mode)
         {
-            Span<byte> preds = this.Preds.AsSpan(this.predIdx);
+            Span<byte> preds = this.Preds.AsSpan(this.PredIdx);
             for (int y = 0; y < 4; y++)
             {
                 preds[..4].Fill((byte)mode);
@@ -500,7 +499,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
         public void SetIntra4Mode(byte[] modes)
         {
             int modesIdx = 0;
-            int predIdx = this.predIdx;
+            int predIdx = this.PredIdx;
             for (int y = 4; y > 0; y--)
             {
                 modes.AsSpan(modesIdx, 4).CopyTo(this.Preds.AsSpan(predIdx));
@@ -542,7 +541,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
         public short[] GetCostModeI4(byte[] modes)
         {
             int predsWidth = this.predsWidth;
-            int predIdx = this.predIdx;
+            int predIdx = this.PredIdx;
             int x = this.I4 & 3;
             int y = this.I4 >> 2;
             int left = x == 0 ? this.Preds[predIdx + (y * predsWidth) - 1] : modes[this.I4 - 1];
@@ -635,7 +634,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             {
                 this.currentMbIdx++;
                 this.nzIdx++;
-                this.predIdx += 4;
+                this.PredIdx += 4;
                 this.yTopIdx += 16;
                 this.uvTopIdx += 16;
             }
@@ -772,35 +771,35 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             Span<int> leftNz = this.LeftNz;
 
             // Top-Y
-            topNz[0] = this.Bit(tnz, 12);
-            topNz[1] = this.Bit(tnz, 13);
-            topNz[2] = this.Bit(tnz, 14);
-            topNz[3] = this.Bit(tnz, 15);
+            topNz[0] = Bit(tnz, 12);
+            topNz[1] = Bit(tnz, 13);
+            topNz[2] = Bit(tnz, 14);
+            topNz[3] = Bit(tnz, 15);
 
             // Top-U
-            topNz[4] = this.Bit(tnz, 18);
-            topNz[5] = this.Bit(tnz, 19);
+            topNz[4] = Bit(tnz, 18);
+            topNz[5] = Bit(tnz, 19);
 
             // Top-V
-            topNz[6] = this.Bit(tnz, 22);
-            topNz[7] = this.Bit(tnz, 23);
+            topNz[6] = Bit(tnz, 22);
+            topNz[7] = Bit(tnz, 23);
 
             // DC
-            topNz[8] = this.Bit(tnz, 24);
+            topNz[8] = Bit(tnz, 24);
 
             // left-Y
-            leftNz[0] = this.Bit(lnz, 3);
-            leftNz[1] = this.Bit(lnz, 7);
-            leftNz[2] = this.Bit(lnz, 11);
-            leftNz[3] = this.Bit(lnz, 15);
+            leftNz[0] = Bit(lnz, 3);
+            leftNz[1] = Bit(lnz, 7);
+            leftNz[2] = Bit(lnz, 11);
+            leftNz[3] = Bit(lnz, 15);
 
             // left-U
-            leftNz[4] = this.Bit(lnz, 17);
-            leftNz[5] = this.Bit(lnz, 19);
+            leftNz[4] = Bit(lnz, 17);
+            leftNz[5] = Bit(lnz, 19);
 
             // left-V
-            leftNz[6] = this.Bit(lnz, 21);
-            leftNz[7] = this.Bit(lnz, 23);
+            leftNz[6] = Bit(lnz, 21);
+            leftNz[7] = Bit(lnz, 23);
 
             // left-DC is special, iterated separately.
         }
@@ -826,7 +825,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             this.Nz[this.nzIdx] = nz;
         }
 
-        private void ImportBlock(Span<byte> src, int srcStride, Span<byte> dst, int w, int h, int size)
+        private static void ImportBlock(Span<byte> src, int srcStride, Span<byte> dst, int w, int h, int size)
         {
             int dstIdx = 0;
             int srcIdx = 0;
@@ -852,7 +851,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             }
         }
 
-        private void ImportLine(Span<byte> src, int srcStride, Span<byte> dst, int len, int totalLen)
+        private static void ImportLine(Span<byte> src, int srcStride, Span<byte> dst, int len, int totalLen)
         {
             int i;
             int srcIdx = 0;
@@ -892,7 +891,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             this.nzIdx = 1; // note: in reference source nz starts at -1.
             this.yTopIdx = 0;
             this.uvTopIdx = 0;
-            this.predIdx = this.predsWidth + (y * 4 * this.predsWidth);
+            this.PredIdx = this.predsWidth + (y * 4 * this.predsWidth);
 
             this.InitLeft();
         }
@@ -931,7 +930,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             this.TopDerr.AsSpan().Clear();
         }
 
-        private int Bit(uint nz, int n) => (nz & (1 << n)) != 0 ? 1 : 0;
+        private static int Bit(uint nz, int n) => (nz & (1 << n)) != 0 ? 1 : 0;
 
         /// <summary>
         /// Set count down.

src/ImageSharp/Formats/Webp/Lossy/Vp8Encoder.cs

@@ -123,10 +123,22 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             this.filterStrength = Numerics.Clamp(filterStrength, 0, 100);
             this.spatialNoiseShaping = Numerics.Clamp(spatialNoiseShaping, 0, 100);
             this.alphaCompression = alphaCompression;
-            this.rdOptLevel = method is WebpEncodingMethod.BestQuality ? Vp8RdLevel.RdOptTrellisAll
-                : method >= WebpEncodingMethod.Level5 ? Vp8RdLevel.RdOptTrellis
-                : method >= WebpEncodingMethod.Level3 ? Vp8RdLevel.RdOptBasic
-                : Vp8RdLevel.RdOptNone;
+            if (method is WebpEncodingMethod.BestQuality)
+            {
+                this.rdOptLevel = Vp8RdLevel.RdOptTrellisAll;
+            }
+            else if (method >= WebpEncodingMethod.Level5)
+            {
+                this.rdOptLevel = Vp8RdLevel.RdOptTrellis;
+            }
+            else if (method >= WebpEncodingMethod.Level3)
+            {
+                this.rdOptLevel = Vp8RdLevel.RdOptBasic;
+            }
+            else
+            {
+                this.rdOptLevel = Vp8RdLevel.RdOptNone;
+            }
 
             int pixelCount = width * height;
             this.Mbw = (width + 15) >> 4;
@@ -142,7 +154,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             this.TopDerr = new sbyte[this.Mbw * 4];
 
             // TODO: make partition_limit configurable?
-            int limit = 100; // original code: limit = 100 - config->partition_limit;
+            const int limit = 100; // original code: limit = 100 - config->partition_limit;
             this.maxI4HeaderBits =
                 256 * 16 * 16 * limit * limit / (100 * 100);  // ... modulated with a quadratic curve.
 
@@ -307,7 +319,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             int yStride = width;
             int uvStride = (yStride + 1) >> 1;
 
-            var it = new Vp8EncIterator(this.YTop, this.UvTop, this.Nz, this.MbInfo, this.Preds, this.TopDerr, this.Mbw, this.Mbh);
+            Vp8EncIterator it = new(this.YTop, this.UvTop, this.Nz, this.MbInfo, this.Preds, this.TopDerr, this.Mbw, this.Mbh);
             int[] alphas = new int[WebpConstants.MaxAlpha + 1];
             this.alpha = this.MacroBlockAnalysis(width, height, it, y, u, v, yStride, uvStride, alphas, out this.uvAlpha);
             int totalMb = this.Mbw * this.Mbw;
@@ -327,7 +339,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             // Extract and encode alpha channel data, if present.
             int alphaDataSize = 0;
             bool alphaCompressionSucceeded = false;
-            using var alphaEncoder = new AlphaEncoder();
+            using AlphaEncoder alphaEncoder = new();
             Span<byte> alphaData = Span<byte>.Empty;
             if (hasAlpha)
             {
@@ -344,9 +356,9 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             // Stats-collection loop.
             this.StatLoop(width, height, yStride, uvStride);
             it.Init();
-            it.InitFilter();
-            var info = new Vp8ModeScore();
-            var residual = new Vp8Residual();
+            Vp8EncIterator.InitFilter();
+            Vp8ModeScore info = new();
+            Vp8Residual residual = new();
             do
             {
                 bool dontUseSkip = !this.Proba.UseSkipProba;
@@ -399,17 +411,21 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
         /// This is used for deciding optimal probabilities. It also modifies the
         /// quantizer value if some target (size, PSNR) was specified.
         /// </summary>
+        /// <param name="width">The image width.</param>
+        /// <param name="height">The image height.</param>
+        /// <param name="yStride">The y-luminance stride.</param>
+        /// <param name="uvStride">The uv stride.</param>
         private void StatLoop(int width, int height, int yStride, int uvStride)
         {
-            int targetSize = 0; // TODO: target size is hardcoded.
-            float targetPsnr = 0.0f; // TODO: targetPsnr is hardcoded.
-            bool doSearch = targetSize > 0 || targetPsnr > 0;
+            const int targetSize = 0; // TODO: target size is hardcoded.
+            const float targetPsnr = 0.0f; // TODO: targetPsnr is hardcoded.
+            const bool doSearch = targetSize > 0 || targetPsnr > 0;
             bool fastProbe = (this.method == 0 || this.method == WebpEncodingMethod.Level3) && !doSearch;
             int numPassLeft = this.entropyPasses;
             Vp8RdLevel rdOpt = this.method >= WebpEncodingMethod.Level3 || doSearch ? Vp8RdLevel.RdOptBasic : Vp8RdLevel.RdOptNone;
             int nbMbs = this.Mbw * this.Mbh;
 
-            var stats = new PassStats(targetSize, targetPsnr, QMin, QMax, this.quality);
+            PassStats stats = new(targetSize, targetPsnr, QMin, QMax, this.quality);
             this.Proba.ResetTokenStats();
 
             // Fast mode: quick analysis pass over few mbs. Better than nothing.
@@ -450,7 +466,10 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                 // If no target size: just do several pass without changing 'q'
                 if (doSearch)
                 {
+                    // Unreachable due to hardcoding above.
+#pragma warning disable CS0162 // Unreachable code detected
                     stats.ComputeNextQ();
+#pragma warning restore CS0162 // Unreachable code detected
                     if (MathF.Abs(stats.Dq) <= DqLimit)
                     {
                         break;
@@ -474,7 +493,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             Span<byte> y = this.Y.GetSpan();
             Span<byte> u = this.U.GetSpan();
             Span<byte> v = this.V.GetSpan();
-            var it = new Vp8EncIterator(this.YTop, this.UvTop, this.Nz, this.MbInfo, this.Preds, this.TopDerr, this.Mbw, this.Mbh);
+            Vp8EncIterator it = new(this.YTop, this.UvTop, this.Nz, this.MbInfo, this.Preds, this.TopDerr, this.Mbw, this.Mbh);
             long size = 0;
             long sizeP0 = 0;
             long distortion = 0;
@@ -482,7 +501,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
 
             it.Init();
             this.SetLoopParams(stats.Q);
-            var info = new Vp8ModeScore();
+            Vp8ModeScore info = new();
             do
             {
                 info.Clear();
@@ -540,7 +559,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
 
                     // this '>> 3' accounts for some inverse WHT scaling
                     int delta = (dqm.MaxEdge * dqm.Y2.Q[1]) >> 3;
-                    int level = this.FilterStrengthFromDelta(this.FilterHeader.Sharpness, delta);
+                    int level = FilterStrengthFromDelta(this.FilterHeader.Sharpness, delta);
                     if (level > dqm.FStrength)
                     {
                         dqm.FStrength = level;
@@ -757,8 +776,8 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
 
         private void SetupFilterStrength()
         {
-            int filterSharpness = 0; // TODO: filterSharpness is hardcoded
-            int filterType = 1; // TODO: filterType is hardcoded
+            const int filterSharpness = 0; // TODO: filterSharpness is hardcoded
+            const int filterType = 1; // TODO: filterType is hardcoded
 
             // level0 is in [0..500]. Using '-f 50' as filter_strength is mid-filtering.
             int level0 = 5 * this.filterStrength;
@@ -768,11 +787,22 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
 
                 // We focus on the quantization of AC coeffs.
                 int qstep = WebpLookupTables.AcTable[Numerics.Clamp(m.Quant, 0, 127)] >> 2;
-                int baseStrength = this.FilterStrengthFromDelta(this.FilterHeader.Sharpness, qstep);
+                int baseStrength = FilterStrengthFromDelta(this.FilterHeader.Sharpness, qstep);
 
                 // Segments with lower complexity ('beta') will be less filtered.
                 int f = baseStrength * level0 / (256 + m.Beta);
-                m.FStrength = f < WebpConstants.FilterStrengthCutoff ? 0 : f > 63 ? 63 : f;
+                if (f < WebpConstants.FilterStrengthCutoff)
+                {
+                    m.FStrength = 0;
+                }
+                else if (f > 63)
+                {
+                    m.FStrength = 63;
+                }
+                else
+                {
+                    m.FStrength = f;
+                }
             }
 
             // We record the initial strength (mainly for the case of 1-segment only).
@@ -1027,10 +1057,12 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
         /// Same as CodeResiduals, but doesn't actually write anything.
         /// Instead, it just records the event distribution.
         /// </summary>
+        /// <param name="it">The iterator.</param>
+        /// <param name="rd">The score accumulator.</param>
         private void RecordResiduals(Vp8EncIterator it, Vp8ModeScore rd)
         {
             int x, y, ch;
-            var residual = new Vp8Residual();
+            Vp8Residual residual = new();
             bool i16 = it.CurrentMacroBlockInfo.MacroBlockType == Vp8MacroBlockType.I16X16;
 
             it.NzToBytes();
@@ -1096,6 +1128,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
         /// is around q=75. Internally, our "good" middle is around c=50. So we
         /// map accordingly using linear piece-wise function
         /// </summary>
+        /// <param name="c">The compression level.</param>
         [MethodImpl(InliningOptions.ShortMethod)]
         private static double QualityToCompression(double c)
         {
@@ -1107,13 +1140,11 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             // this power-law: quant ~= compression ^ 1/3. This law holds well for
             // low quant. Finer modeling for high-quant would make use of AcTable[]
             // more explicitly.
-            double v = Math.Pow(linearC, 1 / 3.0d);
-
-            return v;
+            return (double)Math.Pow(linearC, 1 / 3.0d);
         }
 
         [MethodImpl(InliningOptions.ShortMethod)]
-        private int FilterStrengthFromDelta(int sharpness, int delta)
+        private static int FilterStrengthFromDelta(int sharpness, int delta)
         {
             int pos = delta < WebpConstants.MaxDelzaSize ? delta : WebpConstants.MaxDelzaSize - 1;
             return WebpLookupTables.LevelsFromDelta[sharpness, pos];

src/ImageSharp/Formats/Webp/Lossy/WebpLossyDecoder.cs

@@ -72,7 +72,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             // Paragraph 9.2: color space and clamp type follow.
             sbyte colorSpace = (sbyte)this.bitReader.ReadValue(1);
             sbyte clampType = (sbyte)this.bitReader.ReadValue(1);
-            var pictureHeader = new Vp8PictureHeader()
+            Vp8PictureHeader pictureHeader = new()
             {
                 Width = (uint)width,
                 Height = (uint)height,
@@ -83,10 +83,10 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             };
 
             // Paragraph 9.3: Parse the segment header.
-            var proba = new Vp8Proba();
+            Vp8Proba proba = new();
             Vp8SegmentHeader vp8SegmentHeader = this.ParseSegmentHeader(proba);
 
-            using (var decoder = new Vp8Decoder(info.Vp8FrameHeader, pictureHeader, vp8SegmentHeader, proba, this.memoryAllocator))
+            using (Vp8Decoder decoder = new(info.Vp8FrameHeader, pictureHeader, vp8SegmentHeader, proba, this.memoryAllocator))
             {
                 Vp8Io io = InitializeVp8Io(decoder, pictureHeader);
 
@@ -111,7 +111,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
 
                 if (info.Features?.Alpha == true)
                 {
-                    using (var alphaDecoder = new AlphaDecoder(
+                    using (AlphaDecoder alphaDecoder = new(
                         width,
                         height,
                         alphaData,
@@ -120,7 +120,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                         this.configuration))
                     {
                         alphaDecoder.Decode();
-                        this.DecodePixelValues(width, height, decoder.Pixels.Memory.Span, pixels, alphaDecoder.Alpha);
+                        DecodePixelValues(width, height, decoder.Pixels.Memory.Span, pixels, alphaDecoder.Alpha);
                     }
                 }
                 else
@@ -146,7 +146,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             }
         }
 
-        private void DecodePixelValues<TPixel>(int width, int height, Span<byte> pixelData, Buffer2D<TPixel> decodedPixels, IMemoryOwner<byte> alpha)
+        private static void DecodePixelValues<TPixel>(int width, int height, Span<byte> pixelData, Buffer2D<TPixel> decodedPixels, IMemoryOwner<byte> alpha)
             where TPixel : unmanaged, IPixel<TPixel>
         {
             TPixel color = default;
@@ -187,7 +187,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                 }
 
                 // Prepare for next scanline.
-                this.InitScanline(dec);
+                InitScanline(dec);
 
                 // Reconstruct, filter and emit the row.
                 this.ProcessRow(dec, io);
@@ -222,9 +222,27 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             if (!block.IsI4x4)
             {
                 // Hardcoded 16x16 intra-mode decision tree.
-                int yMode = this.bitReader.GetBit(156) != 0 ?
-                                this.bitReader.GetBit(128) != 0 ? (int)IntraPredictionMode.TrueMotion : (int)IntraPredictionMode.HPrediction :
-                                this.bitReader.GetBit(163) != 0 ? (int)IntraPredictionMode.VPrediction : (int)IntraPredictionMode.DcPrediction;
+                int yMode;
+                if (this.bitReader.GetBit(156) != 0)
+                {
+                    if (this.bitReader.GetBit(128) != 0)
+                    {
+                        yMode = (int)IntraPredictionMode.TrueMotion;
+                    }
+                    else
+                    {
+                        yMode = (int)IntraPredictionMode.HPrediction;
+                    }
+                }
+                else if (this.bitReader.GetBit(163) != 0)
+                {
+                    yMode = (int)IntraPredictionMode.VPrediction;
+                }
+                else
+                {
+                    yMode = (int)IntraPredictionMode.DcPrediction;
+                }
+
                 block.Modes[0] = (byte)yMode;
                 for (int i = 0; i < left.Length; i++)
                 {
@@ -258,12 +276,29 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             }
 
             // Hardcoded UVMode decision tree.
-            block.UvMode = (byte)(this.bitReader.GetBit(142) == 0 ? 0 :
-                           this.bitReader.GetBit(114) == 0 ? 2 :
-                           this.bitReader.GetBit(183) != 0 ? 1 : 3);
+            if (this.bitReader.GetBit(142) == 0)
+            {
+                // Hardcoded UVMode decision tree.
+                block.UvMode = 0;
+            }
+            else if (this.bitReader.GetBit(114) == 0)
+            {
+                // Hardcoded UVMode decision tree.
+                block.UvMode = 2;
+            }
+            else if (this.bitReader.GetBit(183) != 0)
+            {
+                // Hardcoded UVMode decision tree.
+                block.UvMode = 1;
+            }
+            else
+            {
+                // Hardcoded UVMode decision tree.
+                block.UvMode = 3;
+            }
         }
 
-        private void InitScanline(Vp8Decoder dec)
+        private static void InitScanline(Vp8Decoder dec)
         {
             Vp8MacroBlock left = dec.LeftMacroBlock;
             left.NoneZeroAcDcCoeffs = 0;
@@ -279,7 +314,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
         private void ProcessRow(Vp8Decoder dec, Vp8Io io)
         {
             this.ReconstructRow(dec);
-            this.FinishRow(dec, io);
+            FinishRow(dec, io);
         }
 
         private void ReconstructRow(Vp8Decoder dec)
@@ -404,8 +439,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                     {
                         int offset = yOff + WebpConstants.Scan[n];
                         Span<byte> dst = yuv[offset..];
-                        byte lumaMode = block.Modes[n];
-                        switch (lumaMode)
+                        switch (block.Modes[n])
                         {
                             case 0:
                                 LossyUtils.DC4(dst, yuv, offset);
@@ -439,14 +473,13 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                                 break;
                         }
 
-                        this.DoTransform(bits, coeffs.AsSpan(n * 16), dst, this.scratch);
+                        DoTransform(bits, coeffs.AsSpan(n * 16), dst, this.scratch);
                     }
                 }
                 else
                 {
                     // 16x16
-                    int mode = CheckMode(mbx, mby, block.Modes[0]);
-                    switch (mode)
+                    switch (CheckMode(mbx, mby, block.Modes[0]))
                     {
                         case 0:
                             LossyUtils.DC16(yDst, yuv, yOff);
@@ -475,15 +508,14 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                     {
                         for (int n = 0; n < 16; ++n, bits <<= 2)
                         {
-                            this.DoTransform(bits, coeffs.AsSpan(n * 16), yDst[WebpConstants.Scan[n]..], this.scratch);
+                            DoTransform(bits, coeffs.AsSpan(n * 16), yDst[WebpConstants.Scan[n]..], this.scratch);
                         }
                     }
                 }
 
                 // Chroma
                 uint bitsUv = block.NonZeroUv;
-                int chromaMode = CheckMode(mbx, mby, block.UvMode);
-                switch (chromaMode)
+                switch (CheckMode(mbx, mby, block.UvMode))
                 {
                     case 0:
                         LossyUtils.DC8uv(uDst, yuv, uOff);
@@ -515,8 +547,8 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                         break;
                 }
 
-                this.DoUVTransform(bitsUv, coeffs.AsSpan(16 * 16), uDst, this.scratch);
-                this.DoUVTransform(bitsUv >> 8, coeffs.AsSpan(20 * 16), vDst, this.scratch);
+                DoUVTransform(bitsUv, coeffs.AsSpan(16 * 16), uDst, this.scratch);
+                DoUVTransform(bitsUv >> 8, coeffs.AsSpan(20 * 16), vDst, this.scratch);
 
                 // Stash away top samples for next block.
                 if (mby < dec.MbHeight - 1)
@@ -544,16 +576,16 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             }
         }
 
-        private void FilterRow(Vp8Decoder dec)
+        private static void FilterRow(Vp8Decoder dec)
         {
             int mby = dec.MbY;
             for (int mbx = dec.TopLeftMbX; mbx < dec.BottomRightMbX; ++mbx)
             {
-                this.DoFilter(dec, mbx, mby);
+                DoFilter(dec, mbx, mby);
             }
         }
 
-        private void DoFilter(Vp8Decoder dec, int mbx, int mby)
+        private static void DoFilter(Vp8Decoder dec, int mbx, int mby)
         {
             int yBps = dec.CacheYStride;
             Vp8FilterInfo filterInfo = dec.FilterInfo[mbx];
@@ -620,7 +652,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             }
         }
 
-        private void FinishRow(Vp8Decoder dec, Vp8Io io)
+        private static void FinishRow(Vp8Decoder dec, Vp8Io io)
         {
             int extraYRows = WebpConstants.FilterExtraRows[(int)dec.Filter];
             int ySize = extraYRows * dec.CacheYStride;
@@ -635,7 +667,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
 
             if (filterRow)
             {
-                this.FilterRow(dec);
+                FilterRow(dec);
             }
 
             int yStart = mby * 16;
@@ -669,7 +701,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                 io.MbY = yStart;
                 io.MbW = io.Width;
                 io.MbH = yEnd - yStart;
-                this.EmitRgb(dec, io);
+                EmitRgb(dec, io);
             }
 
             // Rotate top samples if needed.
@@ -681,7 +713,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             }
         }
 
-        private int EmitRgb(Vp8Decoder dec, Vp8Io io)
+        private static int EmitRgb(Vp8Decoder dec, Vp8Io io)
         {
             Span<byte> buf = dec.Pixels.Memory.Span;
             int numLinesOut = io.MbH; // a priori guess.
@@ -693,7 +725,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             Span<byte> tmpVBuffer = dec.TmpVBuffer.Memory.Span;
             Span<byte> topU = tmpUBuffer;
             Span<byte> topV = tmpVBuffer;
-            int bpp = 3;
+            const int bpp = 3;
             int bufferStride = bpp * io.Width;
             int dstStartIdx = io.MbY * bufferStride;
             Span<byte> dst = buf[dstStartIdx..];
@@ -753,7 +785,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             return numLinesOut;
         }
 
-        private void DoTransform(uint bits, Span<short> src, Span<byte> dst, Span<int> scratch)
+        private static void DoTransform(uint bits, Span<short> src, Span<byte> dst, Span<int> scratch)
         {
             switch (bits >> 30)
             {
@@ -769,7 +801,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             }
         }
 
-        private void DoUVTransform(uint bits, Span<short> src, Span<byte> dst, Span<int> scratch)
+        private static void DoUVTransform(uint bits, Span<short> src, Span<byte> dst, Span<int> scratch)
         {
             // any non-zero coeff at all?
             if ((bits & 0xff) > 0)
@@ -845,7 +877,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                 // Parse DC
                 short[] dc = new short[16];
                 int ctx = (int)(mb.NoneZeroDcCoeffs + leftMb.NoneZeroDcCoeffs);
-                int nz = this.GetCoeffs(br, bands[1], ctx, q.Y2Mat, 0, dc);
+                int nz = GetCoeffs(br, bands[1], ctx, q.Y2Mat, 0, dc);
                 mb.NoneZeroDcCoeffs = leftMb.NoneZeroDcCoeffs = (uint)(nz > 0 ? 1 : 0);
                 if (nz > 1)
                 {
@@ -876,7 +908,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                 for (int x = 0; x < 4; x++)
                 {
                     int ctx = l + (tnz & 1);
-                    int nz = this.GetCoeffs(br, acProba, ctx, q.Y1Mat, first, dst.AsSpan(dstOffset));
+                    int nz = GetCoeffs(br, acProba, ctx, q.Y1Mat, first, dst.AsSpan(dstOffset));
                     l = nz > first ? 1 : 0;
                     tnz = (byte)((tnz >> 1) | (l << 7));
                     nzCoeffs = NzCodeBits(nzCoeffs, nz, dst[dstOffset] != 0 ? 1 : 0);
@@ -903,7 +935,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                     for (int x = 0; x < 2; x++)
                     {
                         int ctx = l + (tnz & 1);
-                        int nz = this.GetCoeffs(br, bands[2], ctx, q.UvMat, 0, dst.AsSpan(dstOffset));
+                        int nz = GetCoeffs(br, bands[2], ctx, q.UvMat, 0, dst.AsSpan(dstOffset));
                         l = nz > 0 ? 1 : 0;
                         tnz = (byte)((tnz >> 1) | (l << 3));
                         nzCoeffs = NzCodeBits(nzCoeffs, nz, dst[dstOffset] != 0 ? 1 : 0);
@@ -929,7 +961,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             return (nonZeroY | nonZeroUv) == 0;
         }
 
-        private int GetCoeffs(Vp8BitReader br, Vp8BandProbas[] prob, int ctx, int[] dq, int n, Span<short> coeffs)
+        private static int GetCoeffs(Vp8BitReader br, Vp8BandProbas[] prob, int ctx, int[] dq, int n, Span<short> coeffs)
         {
             // Returns the position of the last non-zero coeff plus one.
             Vp8ProbaArray p = prob[n].Probabilities[ctx];
@@ -960,7 +992,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                 }
                 else
                 {
-                    v = this.GetLargeValue(br, p.Probabilities);
+                    v = GetLargeValue(br, p.Probabilities);
                     p = prob[n + 1].Probabilities[2];
                 }
 
@@ -971,7 +1003,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
             return 16;
         }
 
-        private int GetLargeValue(Vp8BitReader br, byte[] p)
+        private static int GetLargeValue(Vp8BitReader br, byte[] p)
         {
             // See section 13 - 2: http://tools.ietf.org/html/rfc6386#section-13.2
             int v;
@@ -986,53 +1018,50 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                     v = 3 + br.GetBit(p[5]);
                 }
             }
-            else
+            else if (br.GetBit(p[6]) == 0)
             {
-                if (br.GetBit(p[6]) == 0)
+                if (br.GetBit(p[7]) == 0)
                 {
-                    if (br.GetBit(p[7]) == 0)
-                    {
-                        v = 5 + br.GetBit(159);
-                    }
-                    else
-                    {
-                        v = 7 + (2 * br.GetBit(165));
-                        v += br.GetBit(145);
-                    }
+                    v = 5 + br.GetBit(159);
                 }
                 else
                 {
-                    int bit1 = br.GetBit(p[8]);
-                    int bit0 = br.GetBit(p[9 + bit1]);
-                    int cat = (2 * bit1) + bit0;
-                    v = 0;
-                    byte[] tab = null;
-                    switch (cat)
-                    {
-                        case 0:
-                            tab = WebpConstants.Cat3;
-                            break;
-                        case 1:
-                            tab = WebpConstants.Cat4;
-                            break;
-                        case 2:
-                            tab = WebpConstants.Cat5;
-                            break;
-                        case 3:
-                            tab = WebpConstants.Cat6;
-                            break;
-                        default:
-                            WebpThrowHelper.ThrowImageFormatException("VP8 parsing error");
-                            break;
-                    }
-
-                    for (int i = 0; i < tab.Length; i++)
-                    {
-                        v += v + br.GetBit(tab[i]);
-                    }
+                    v = 7 + (2 * br.GetBit(165));
+                    v += br.GetBit(145);
+                }
+            }
+            else
+            {
+                int bit1 = br.GetBit(p[8]);
+                int bit0 = br.GetBit(p[9 + bit1]);
+                int cat = (2 * bit1) + bit0;
+                v = 0;
+                byte[] tab = null;
+                switch (cat)
+                {
+                    case 0:
+                        tab = WebpConstants.Cat3;
+                        break;
+                    case 1:
+                        tab = WebpConstants.Cat4;
+                        break;
+                    case 2:
+                        tab = WebpConstants.Cat5;
+                        break;
+                    case 3:
+                        tab = WebpConstants.Cat6;
+                        break;
+                    default:
+                        WebpThrowHelper.ThrowImageFormatException("VP8 parsing error");
+                        break;
+                }
 
-                    v += 3 + (8 << cat);
+                for (int i = 0; i < tab.Length; i++)
+                {
+                    v += v + br.GetBit(tab[i]);
                 }
+
+                v += 3 + (8 << cat);
             }
 
             return v;
@@ -1040,7 +1069,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
 
         private Vp8SegmentHeader ParseSegmentHeader(Vp8Proba proba)
         {
-            var vp8SegmentHeader = new Vp8SegmentHeader
+            Vp8SegmentHeader vp8SegmentHeader = new()
             {
                 UseSegment = this.bitReader.ReadBool()
             };
@@ -1055,15 +1084,13 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                     for (int i = 0; i < vp8SegmentHeader.Quantizer.Length; i++)
                     {
                         hasValue = this.bitReader.ReadBool();
-                        byte quantizeValue = (byte)(hasValue ? this.bitReader.ReadSignedValue(7) : 0);
-                        vp8SegmentHeader.Quantizer[i] = quantizeValue;
+                        vp8SegmentHeader.Quantizer[i] = (byte)(hasValue ? this.bitReader.ReadSignedValue(7) : 0);
                     }
 
                     for (int i = 0; i < vp8SegmentHeader.FilterStrength.Length; i++)
                     {
                         hasValue = this.bitReader.ReadBool();
-                        byte filterStrengthValue = (byte)(hasValue ? this.bitReader.ReadSignedValue(6) : 0);
-                        vp8SegmentHeader.FilterStrength[i] = filterStrengthValue;
+                        vp8SegmentHeader.FilterStrength[i] = (byte)(hasValue ? this.bitReader.ReadSignedValue(6) : 0);
                     }
 
                     if (vp8SegmentHeader.UpdateMap)
@@ -1188,10 +1215,8 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                         decoder.DeQuantMatrices[i] = decoder.DeQuantMatrices[0];
                         continue;
                     }
-                    else
-                    {
-                        q = baseQ0;
-                    }
+
+                    q = baseQ0;
                 }
 
                 Vp8QuantMatrix m = decoder.DeQuantMatrices[i];
@@ -1228,10 +1253,9 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
                         for (int p = 0; p < WebpConstants.NumProbas; ++p)
                         {
                             byte prob = WebpLookupTables.CoeffsUpdateProba[t, b, c, p];
-                            byte v = (byte)(this.bitReader.GetBit(prob) != 0
+                            proba.Bands[t, b].Probabilities[c].Probabilities[p] = (byte)(this.bitReader.GetBit(prob) != 0
                                         ? this.bitReader.ReadValue(8)
                                         : WebpLookupTables.DefaultCoeffsProba[t, b, c, p]);
-                            proba.Bands[t, b].Probabilities[c].Probabilities[p] = v;
                         }
                     }
                 }
@@ -1251,7 +1275,7 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
 
         private static Vp8Io InitializeVp8Io(Vp8Decoder dec, Vp8PictureHeader pictureHeader)
         {
-            var io = default(Vp8Io);
+            Vp8Io io = default;
             io.Width = (int)pictureHeader.Width;
             io.Height = (int)pictureHeader.Height;
             io.UseScaling = false;
@@ -1311,7 +1335,19 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
         private static uint NzCodeBits(uint nzCoeffs, int nz, int dcNz)
         {
             nzCoeffs <<= 2;
-            nzCoeffs |= (uint)(nz > 3 ? 3 : nz > 1 ? 2 : dcNz);
+            if (nz > 3)
+            {
+                nzCoeffs |= 3;
+            }
+            else if (nz > 1)
+            {
+                nzCoeffs |= 2;
+            }
+            else
+            {
+                nzCoeffs |= (uint)dcNz;
+            }
+
             return nzCoeffs;
         }
 
@@ -1337,6 +1373,6 @@ namespace SixLabors.ImageSharp.Formats.Webp.Lossy
         }
 
         [MethodImpl(InliningOptions.ShortMethod)]
-        private static int Clip(int value, int max) => value < 0 ? 0 : value > max ? max : value;
+        private static int Clip(int value, int max) => Math.Clamp(value, 0, max);
     }
 }

src/ImageSharp/Formats/Webp/WebpAnimationDecoder.cs

@@ -147,7 +147,7 @@ namespace SixLabors.ImageSharp.Formats.Webp
             }
 
             WebpImageInfo webpInfo = null;
-            var features = new WebpFeatures();
+            WebpFeatures features = new();
             switch (chunkType)
             {
                 case WebpChunkType.Vp8:
@@ -169,7 +169,7 @@ namespace SixLabors.ImageSharp.Formats.Webp
             {
                 image = new Image<TPixel>(this.configuration, (int)width, (int)height, backgroundColor.ToPixel<TPixel>(), this.metadata);
 
-                this.SetFrameMetadata(image.Frames.RootFrame.Metadata, frameData.Duration);
+                SetFrameMetadata(image.Frames.RootFrame.Metadata, frameData.Duration);
 
                 imageFrame = image.Frames.RootFrame;
             }
@@ -177,7 +177,7 @@ namespace SixLabors.ImageSharp.Formats.Webp
             {
                 currentFrame = image.Frames.AddFrame(previousFrame); // This clones the frame and adds it the collection.
 
-                this.SetFrameMetadata(currentFrame.Metadata, frameData.Duration);
+                SetFrameMetadata(currentFrame.Metadata, frameData.Duration);
 
                 imageFrame = currentFrame;
             }
@@ -186,7 +186,7 @@ namespace SixLabors.ImageSharp.Formats.Webp
             int frameY = (int)(frameData.Y * 2);
             int frameWidth = (int)frameData.Width;
             int frameHeight = (int)frameData.Height;
-            var regionRectangle = Rectangle.FromLTRB(frameX, frameY, frameX + frameWidth, frameY + frameHeight);
+            Rectangle regionRectangle = Rectangle.FromLTRB(frameX, frameY, frameX + frameWidth, frameY + frameHeight);
 
             if (frameData.DisposalMethod is AnimationDisposalMethod.Dispose)
             {
@@ -194,7 +194,7 @@ namespace SixLabors.ImageSharp.Formats.Webp
             }
 
             using Buffer2D<TPixel> decodedImage = this.DecodeImageData<TPixel>(frameData, webpInfo);
-            this.DrawDecodedImageOnCanvas(decodedImage, imageFrame, frameX, frameY, frameWidth, frameHeight);
+            DrawDecodedImageOnCanvas(decodedImage, imageFrame, frameX, frameY, frameWidth, frameHeight);
 
             if (previousFrame != null && frameData.BlendingMethod is AnimationBlendingMethod.AlphaBlending)
             {
@@ -213,7 +213,7 @@ namespace SixLabors.ImageSharp.Formats.Webp
         /// <param name="meta">The metadata.</param>
         /// <param name="duration">The frame duration.</param>
         [MethodImpl(MethodImplOptions.AggressiveInlining)]
-        private void SetFrameMetadata(ImageFrameMetadata meta, uint duration)
+        private static void SetFrameMetadata(ImageFrameMetadata meta, uint duration)
         {
             WebpFrameMetadata frameMetadata = meta.GetWebpMetadata();
             frameMetadata.FrameDuration = duration;
@@ -248,19 +248,19 @@ namespace SixLabors.ImageSharp.Formats.Webp
         private Buffer2D<TPixel> DecodeImageData<TPixel>(AnimationFrameData frameData, WebpImageInfo webpInfo)
             where TPixel : unmanaged, IPixel<TPixel>
         {
-            var decodedImage = new Image<TPixel>((int)frameData.Width, (int)frameData.Height);
+            Image<TPixel> decodedImage = new((int)frameData.Width, (int)frameData.Height);
 
             try
             {
                 Buffer2D<TPixel> pixelBufferDecoded = decodedImage.Frames.RootFrame.PixelBuffer;
                 if (webpInfo.IsLossless)
                 {
-                    var losslessDecoder = new WebpLosslessDecoder(webpInfo.Vp8LBitReader, this.memoryAllocator, this.configuration);
+                    WebpLosslessDecoder losslessDecoder = new(webpInfo.Vp8LBitReader, this.memoryAllocator, this.configuration);
                     losslessDecoder.Decode(pixelBufferDecoded, (int)webpInfo.Width, (int)webpInfo.Height);
                 }
                 else
                 {
-                    var lossyDecoder = new WebpLossyDecoder(webpInfo.Vp8BitReader, this.memoryAllocator, this.configuration);
+                    WebpLossyDecoder lossyDecoder = new(webpInfo.Vp8BitReader, this.memoryAllocator, this.configuration);
                     lossyDecoder.Decode(pixelBufferDecoded, (int)webpInfo.Width, (int)webpInfo.Height, webpInfo, this.alphaData);
                 }
 
@@ -278,7 +278,7 @@ namespace SixLabors.ImageSharp.Formats.Webp
         }
 
         /// <summary>
-        /// Draws the decoded image on canvas. The decoded image can be smaller the the canvas.
+        /// Draws the decoded image on canvas. The decoded image can be smaller the canvas.
         /// </summary>
         /// <typeparam name="TPixel">The type of the pixel.</typeparam>
         /// <param name="decodedImage">The decoded image.</param>
@@ -287,7 +287,7 @@ namespace SixLabors.ImageSharp.Formats.Webp
         /// <param name="frameY">The frame y coordinate.</param>
         /// <param name="frameWidth">The width of the frame.</param>
         /// <param name="frameHeight">The height of the frame.</param>
-        private void DrawDecodedImageOnCanvas<TPixel>(Buffer2D<TPixel> decodedImage, ImageFrame<TPixel> imageFrame, int frameX, int frameY, int frameWidth, int frameHeight)
+        private static void DrawDecodedImageOnCanvas<TPixel>(Buffer2D<TPixel> decodedImage, ImageFrame<TPixel> imageFrame, int frameX, int frameY, int frameWidth, int frameHeight)
             where TPixel : unmanaged, IPixel<TPixel>
         {
             Buffer2D<TPixel> imageFramePixels = imageFrame.PixelBuffer;
@@ -341,7 +341,7 @@ namespace SixLabors.ImageSharp.Formats.Webp
                 return;
             }
 
-            var interest = Rectangle.Intersect(imageFrame.Bounds(), this.restoreArea.Value);
+            Rectangle interest = Rectangle.Intersect(imageFrame.Bounds(), this.restoreArea.Value);
             Buffer2DRegion<TPixel> pixelRegion = imageFrame.PixelBuffer.GetRegion(interest);
             TPixel backgroundPixel = backgroundColor.ToPixel<TPixel>();
             pixelRegion.Fill(backgroundPixel);
@@ -354,25 +354,25 @@ namespace SixLabors.ImageSharp.Formats.Webp
         /// <returns>Animation frame data.</returns>
         private AnimationFrameData ReadFrameHeader(BufferedReadStream stream)
         {
-            var data = new AnimationFrameData
+            AnimationFrameData data = new()
             {
-                DataSize = WebpChunkParsingUtils.ReadChunkSize(stream, this.buffer)
-            };
+                DataSize = WebpChunkParsingUtils.ReadChunkSize(stream, this.buffer),
 
-            // 3 bytes for the X coordinate of the upper left corner of the frame.
-            data.X = WebpChunkParsingUtils.ReadUnsignedInt24Bit(stream, this.buffer);
+                // 3 bytes for the X coordinate of the upper left corner of the frame.
+                X = WebpChunkParsingUtils.ReadUnsignedInt24Bit(stream, this.buffer),
 
-            // 3 bytes for the Y coordinate of the upper left corner of the frame.
-            data.Y = WebpChunkParsingUtils.ReadUnsignedInt24Bit(stream, this.buffer);
+                // 3 bytes for the Y coordinate of the upper left corner of the frame.
+                Y = WebpChunkParsingUtils.ReadUnsignedInt24Bit(stream, this.buffer),
 
-            // Frame width Minus One.
-            data.Width = WebpChunkParsingUtils.ReadUnsignedInt24Bit(stream, this.buffer) + 1;
+                // Frame width Minus One.
+                Width = WebpChunkParsingUtils.ReadUnsignedInt24Bit(stream, this.buffer) + 1,
 
-            // Frame height Minus One.
-            data.Height = WebpChunkParsingUtils.ReadUnsignedInt24Bit(stream, this.buffer) + 1;
+                // Frame height Minus One.
+                Height = WebpChunkParsingUtils.ReadUnsignedInt24Bit(stream, this.buffer) + 1,
 
-            // Frame duration.
-            data.Duration = WebpChunkParsingUtils.ReadUnsignedInt24Bit(stream, this.buffer);
+                // Frame duration.
+                Duration = WebpChunkParsingUtils.ReadUnsignedInt24Bit(stream, this.buffer)
+            };
 
             byte flags = (byte)stream.ReadByte();
             data.DisposalMethod = (flags & 1) == 1 ? AnimationDisposalMethod.Dispose : AnimationDisposalMethod.DoNotDispose;

src/ImageSharp/Formats/Webp/WebpImageFormatDetector.cs

@@ -14,22 +14,26 @@ namespace SixLabors.ImageSharp.Formats.Webp
         public int HeaderSize => 12;
 
         /// <inheritdoc />
-        public IImageFormat DetectFormat(ReadOnlySpan<byte> header) => this.IsSupportedFileFormat(header) ? WebpFormat.Instance : null;
+        public IImageFormat DetectFormat(ReadOnlySpan<byte> header)
+            => this.IsSupportedFileFormat(header) ? WebpFormat.Instance : null;
 
-        private bool IsSupportedFileFormat(ReadOnlySpan<byte> header) => header.Length >= this.HeaderSize && this.IsRiffContainer(header) && this.IsWebpFile(header);
+        private bool IsSupportedFileFormat(ReadOnlySpan<byte> header)
+            => header.Length >= this.HeaderSize && IsRiffContainer(header) && IsWebpFile(header);
 
         /// <summary>
         /// Checks, if the header starts with a valid RIFF FourCC.
         /// </summary>
         /// <param name="header">The header bytes.</param>
         /// <returns>True, if its a valid RIFF FourCC.</returns>
-        private bool IsRiffContainer(ReadOnlySpan<byte> header) => header[..4].SequenceEqual(WebpConstants.RiffFourCc);
+        private static bool IsRiffContainer(ReadOnlySpan<byte> header)
+            => header[..4].SequenceEqual(WebpConstants.RiffFourCc);
 
         /// <summary>
         /// Checks if 'WEBP' is present in the header.
         /// </summary>
         /// <param name="header">The header bytes.</param>
         /// <returns>True, if its a webp file.</returns>
-        private bool IsWebpFile(ReadOnlySpan<byte> header) => header.Slice(8, 4).SequenceEqual(WebpConstants.WebpHeader);
+        private static bool IsWebpFile(ReadOnlySpan<byte> header)
+            => header.Slice(8, 4).SequenceEqual(WebpConstants.WebpHeader);
     }
 }

src/ImageSharp/Formats/Webp/WebpImageInfo.cs

@@ -49,14 +49,14 @@ namespace SixLabors.ImageSharp.Formats.Webp
         public Vp8FrameHeader Vp8FrameHeader { get; set; }
 
         /// <summary>
-        /// Gets or sets the VP8L bitreader. Will be null, if its not a lossless image.
+        /// Gets or sets the VP8L bitreader. Will be <see langword="null"/>, if its not a lossless image.
         /// </summary>
-        public Vp8LBitReader Vp8LBitReader { get; set; } = null;
+        public Vp8LBitReader Vp8LBitReader { get; set; }
 
         /// <summary>
-        /// Gets or sets the VP8 bitreader. Will be null, if its not a lossy image.
+        /// Gets or sets the VP8 bitreader. Will be <see langword="null"/>, if its not a lossy image.
         /// </summary>
-        public Vp8BitReader Vp8BitReader { get; set; } = null;
+        public Vp8BitReader Vp8BitReader { get; set; }
 
         /// <inheritdoc/>
         public void Dispose()

src/ImageSharp/IO/BufferedReadStream.cs

@@ -112,7 +112,7 @@ namespace SixLabors.ImageSharp.IO
         public override bool CanSeek { get; } = true;
 
         /// <inheritdoc/>
-        public override bool CanWrite { get; } = false;
+        public override bool CanWrite { get; }
 
         /// <summary>
         /// Gets remaining byte count available to read.

src/ImageSharp/IO/ChunkedMemoryStream.cs

@@ -203,7 +203,7 @@ namespace SixLabors.ImageSharp.IO
                 this.isDisposed = true;
                 if (disposing)
                 {
-                    this.ReleaseMemoryChunks(this.memoryChunk);
+                    ReleaseMemoryChunks(this.memoryChunk);
                 }
 
                 this.memoryChunk = null;
@@ -530,7 +530,7 @@ namespace SixLabors.ImageSharp.IO
             };
         }
 
-        private void ReleaseMemoryChunks(MemoryChunk chunk)
+        private static void ReleaseMemoryChunks(MemoryChunk chunk)
         {
             while (chunk != null)
             {

src/ImageSharp/Image.FromStream.cs

@@ -4,6 +4,7 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
+using System.Globalization;
 using System.IO;
 using System.Text;
 using System.Threading;
@@ -546,7 +547,7 @@ namespace SixLabors.ImageSharp
             }
 
             // We want to be able to load images from things like HttpContext.Request.Body
-            using var memoryStream = new ChunkedMemoryStream(configuration.MemoryAllocator);
+            using ChunkedMemoryStream memoryStream = new(configuration.MemoryAllocator);
             stream.CopyTo(memoryStream, configuration.StreamProcessingBufferSize);
             memoryStream.Position = 0;
 
@@ -562,6 +563,7 @@ namespace SixLabors.ImageSharp
         /// <param name="action">The action to perform.</param>
         /// <param name="cancellationToken">The cancellation token.</param>
         /// <returns>The <see cref="Task{T}"/>.</returns>
+        /// <exception cref="NotSupportedException">Cannot read from the stream.</exception>
         internal static async Task<T> WithSeekableStreamAsync<T>(
             DecoderOptions options,
             Stream stream,
@@ -577,19 +579,16 @@ namespace SixLabors.ImageSharp
             }
 
             Configuration configuration = options.Configuration;
-            if (stream.CanSeek)
+            if (stream.CanSeek && configuration.ReadOrigin == ReadOrigin.Begin)
             {
-                if (configuration.ReadOrigin == ReadOrigin.Begin)
-                {
-                    stream.Position = 0;
-                }
+                stream.Position = 0;
 
                 // NOTE: We are explicitly not executing the action against the stream here as we do in WithSeekableStream() because that
                 // would incur synchronous IO reads which must be avoided in this asynchronous method.  Instead, we will *always* run the
                 // code below to copy the stream to an in-memory buffer before invoking the action.
             }
 
-            using var memoryStream = new ChunkedMemoryStream(configuration.MemoryAllocator);
+            using ChunkedMemoryStream memoryStream = new(configuration.MemoryAllocator);
             await stream.CopyToAsync(memoryStream, configuration.StreamProcessingBufferSize, cancellationToken).ConfigureAwait(false);
             memoryStream.Position = 0;
 
@@ -599,12 +598,12 @@ namespace SixLabors.ImageSharp
         [DoesNotReturn]
         private static void ThrowNotLoaded(DecoderOptions options)
         {
-            var sb = new StringBuilder();
+            StringBuilder sb = new();
             sb.AppendLine("Image cannot be loaded. Available decoders:");
 
             foreach (KeyValuePair<IImageFormat, IImageDecoder> val in options.Configuration.ImageFormatsManager.ImageDecoders)
             {
-                sb.AppendFormat(" - {0} : {1}{2}", val.Key.Name, val.Value.GetType().Name, Environment.NewLine);
+                sb.AppendFormat(CultureInfo.InvariantCulture, " - {0} : {1}{2}", val.Key.Name, val.Value.GetType().Name, Environment.NewLine);
             }
 
             throw new UnknownImageFormatException(sb.ToString());

src/ImageSharp/Image.WrapMemory.cs

@@ -53,7 +53,7 @@ namespace SixLabors.ImageSharp
             Guard.NotNull(metadata, nameof(metadata));
             Guard.IsTrue(pixelMemory.Length >= width * height, nameof(pixelMemory), "The length of the input memory is less than the specified image size");
 
-            var memorySource = MemoryGroup<TPixel>.Wrap(pixelMemory);
+            MemoryGroup<TPixel> memorySource = MemoryGroup<TPixel>.Wrap(pixelMemory);
             return new Image<TPixel>(configuration, memorySource, width, height, metadata);
         }
 
@@ -148,7 +148,7 @@ namespace SixLabors.ImageSharp
             Guard.NotNull(metadata, nameof(metadata));
             Guard.IsTrue(pixelMemoryOwner.Memory.Length >= width * height, nameof(pixelMemoryOwner), "The length of the input memory is less than the specified image size");
 
-            var memorySource = MemoryGroup<TPixel>.Wrap(pixelMemoryOwner);
+            MemoryGroup<TPixel> memorySource = MemoryGroup<TPixel>.Wrap(pixelMemoryOwner);
             return new Image<TPixel>(configuration, memorySource, width, height, metadata);
         }
 
@@ -231,11 +231,11 @@ namespace SixLabors.ImageSharp
             Guard.NotNull(configuration, nameof(configuration));
             Guard.NotNull(metadata, nameof(metadata));
 
-            var memoryManager = new ByteMemoryManager<TPixel>(byteMemory);
+            ByteMemoryManager<TPixel> memoryManager = new(byteMemory);
 
             Guard.IsTrue(memoryManager.Memory.Length >= width * height, nameof(byteMemory), "The length of the input memory is less than the specified image size");
 
-            var memorySource = MemoryGroup<TPixel>.Wrap(memoryManager.Memory);
+            MemoryGroup<TPixel> memorySource = MemoryGroup<TPixel>.Wrap(memoryManager.Memory);
             return new Image<TPixel>(configuration, memorySource, width, height, metadata);
         }
 
@@ -329,11 +329,11 @@ namespace SixLabors.ImageSharp
             Guard.NotNull(configuration, nameof(configuration));
             Guard.NotNull(metadata, nameof(metadata));
 
-            var pixelMemoryOwner = new ByteMemoryOwner<TPixel>(byteMemoryOwner);
+            ByteMemoryOwner<TPixel> pixelMemoryOwner = new(byteMemoryOwner);
 
             Guard.IsTrue(pixelMemoryOwner.Memory.Length >= (long)width * height, nameof(pixelMemoryOwner), "The length of the input memory is less than the specified image size");
 
-            var memorySource = MemoryGroup<TPixel>.Wrap(pixelMemoryOwner);
+            MemoryGroup<TPixel> memorySource = MemoryGroup<TPixel>.Wrap(pixelMemoryOwner);
             return new Image<TPixel>(configuration, memorySource, width, height, metadata);
         }
 
@@ -422,9 +422,9 @@ namespace SixLabors.ImageSharp
             Guard.NotNull(configuration, nameof(configuration));
             Guard.NotNull(metadata, nameof(metadata));
 
-            var memoryManager = new UnmanagedMemoryManager<TPixel>(pointer, width * height);
+            UnmanagedMemoryManager<TPixel> memoryManager = new(pointer, width * height);
 
-            var memorySource = MemoryGroup<TPixel>.Wrap(memoryManager.Memory);
+            MemoryGroup<TPixel> memorySource = MemoryGroup<TPixel>.Wrap(memoryManager.Memory);
             return new Image<TPixel>(configuration, memorySource, width, height, metadata);
         }
 

src/ImageSharp/ImageExtensions.cs

@@ -3,6 +3,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.IO;
 using System.Text;
 using System.Threading;
@@ -106,12 +107,12 @@ namespace SixLabors.ImageSharp
 
             if (encoder is null)
             {
-                var sb = new StringBuilder();
+                StringBuilder sb = new();
                 sb.AppendLine("No encoder was found for the provided mime type. Registered encoders include:");
 
                 foreach (KeyValuePair<IImageFormat, IImageEncoder> val in source.GetConfiguration().ImageFormatsManager.ImageEncoders)
                 {
-                    sb.AppendFormat(" - {0} : {1}{2}", val.Key.Name, val.Value.GetType().Name, Environment.NewLine);
+                    sb.AppendFormat(CultureInfo.InvariantCulture, " - {0} : {1}{2}", val.Key.Name, val.Value.GetType().Name, Environment.NewLine);
                 }
 
                 throw new NotSupportedException(sb.ToString());
@@ -150,12 +151,12 @@ namespace SixLabors.ImageSharp
 
             if (encoder is null)
             {
-                var sb = new StringBuilder();
+                StringBuilder sb = new();
                 sb.AppendLine("No encoder was found for the provided mime type. Registered encoders include:");
 
                 foreach (KeyValuePair<IImageFormat, IImageEncoder> val in source.GetConfiguration().ImageFormatsManager.ImageEncoders)
                 {
-                    sb.AppendFormat(" - {0} : {1}{2}", val.Key.Name, val.Value.GetType().Name, Environment.NewLine);
+                    sb.AppendFormat(CultureInfo.InvariantCulture, " - {0} : {1}{2}", val.Key.Name, val.Value.GetType().Name, Environment.NewLine);
                 }
 
                 throw new NotSupportedException(sb.ToString());
@@ -182,7 +183,7 @@ namespace SixLabors.ImageSharp
         {
             Guard.NotNull(format, nameof(format));
 
-            using var stream = new MemoryStream();
+            using MemoryStream stream = new();
             source.Save(stream, format);
 
             // Always available.

src/ImageSharp/ImageSharp.csproj.DotSettings

@@ -1,15 +0,0 @@
-<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
-	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=color/@EntryIndexedValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=common/@EntryIndexedValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=common_005Cexceptions/@EntryIndexedValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=memory_005Callocators/@EntryIndexedValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=memory_005Cdiscontiguousbuffers/@EntryIndexedValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=pixelformats_005Cgenerated/@EntryIndexedValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=pixelformats_005Cpackedpixels/@EntryIndexedValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=pixelformats_005Cpixelimplementations/@EntryIndexedValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=pixelformats_005Cpixeltypes/@EntryIndexedValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=pixelformats_005Cutils/@EntryIndexedValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=processing_005Cextensions/@EntryIndexedValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=processing_005Cprocessors_005Cconvolution_005Ckernels/@EntryIndexedValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=processing_005Cprocessors_005Ctransforms_005Cresamplers/@EntryIndexedValue">True</s:Boolean>
-	<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=processing_005Cprocessors_005Ctransforms_005Cresize/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>

src/ImageSharp/ImageSharp.netstandard1.1.v3.ncrunchproject

@@ -1,5 +0,0 @@
-<ProjectConfiguration>
-  <Settings>
-    <IgnoreThisComponentCompletely>True</IgnoreThisComponentCompletely>
-  </Settings>
-</ProjectConfiguration>

src/ImageSharp/Memory/Allocators/Internals/UnmanagedMemoryHandle.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Six Labors.
+// Copyright (c) Six Labors.
 // Licensed under the Six Labors Split License.
 
 using System;
@@ -24,7 +24,7 @@ namespace SixLabors.ImageSharp.Memory.Internals
         // A Monitor to wait/signal when we are low on memory.
         private static object lowMemoryMonitor;
 
-        public static readonly UnmanagedMemoryHandle NullHandle = default;
+        public static readonly UnmanagedMemoryHandle NullHandle;
 
         private IntPtr handle;
         private int lengthInBytes;
@@ -80,24 +80,17 @@ namespace SixLabors.ImageSharp.Memory.Internals
                 {
                     handle = Marshal.AllocHGlobal(lengthInBytes);
                 }
-                catch (OutOfMemoryException)
+                catch (OutOfMemoryException) when (counter < MaxAllocationAttempts)
                 {
                     // We are low on memory, but expect some memory to be freed soon.
                     // Block the thread & retry to avoid OOM.
-                    if (counter < MaxAllocationAttempts)
-                    {
-                        counter++;
-                        Interlocked.Increment(ref totalOomRetries);
-
-                        Interlocked.CompareExchange(ref lowMemoryMonitor, new object(), null);
-                        Monitor.Enter(lowMemoryMonitor);
-                        Monitor.Wait(lowMemoryMonitor, millisecondsTimeout: 1);
-                        Monitor.Exit(lowMemoryMonitor);
-                    }
-                    else
-                    {
-                        throw;
-                    }
+                    counter++;
+                    Interlocked.Increment(ref totalOomRetries);
+
+                    Interlocked.CompareExchange(ref lowMemoryMonitor, new object(), null);
+                    Monitor.Enter(lowMemoryMonitor);
+                    Monitor.Wait(lowMemoryMonitor, millisecondsTimeout: 1);
+                    Monitor.Exit(lowMemoryMonitor);
                 }
             }