Tidy up comments

src/ImageSharp/Formats/Gif/DisposalMethod.cs

@@ -11,23 +11,26 @@ namespace SixLabors.ImageSharp.Formats.Gif
     public enum DisposalMethod
     {
         /// <summary>
-        /// No disposal specified. The decoder is not required to take any action.
+        /// No disposal specified.
+        /// The decoder is not required to take any action.
         /// </summary>
         Unspecified = 0,
 
         /// <summary>
-        /// Do not dispose. The graphic is to be left in place.
+        /// Do not dispose.
+        /// The graphic is to be left in place.
         /// </summary>
         NotDispose = 1,
 
         /// <summary>
-        /// Restore to background color. The area used by the graphic must be restored to
-        /// the background color.
+        /// Restore to background color.
+        /// The area used by the graphic must be restored to the background color.
         /// </summary>
         RestoreToBackground = 2,
 
         /// <summary>
-        /// Restore to previous. The decoder is required to restore the area overwritten by the
+        /// Restore to previous.
+        /// The decoder is required to restore the area overwritten by the
         /// graphic with what was there prior to rendering the graphic.
         /// </summary>
         RestoreToPrevious = 3

src/ImageSharp/Formats/Gif/GifEncoderCore.cs

@@ -27,22 +27,22 @@ namespace SixLabors.ImageSharp.Formats.Gif
         private readonly byte[] buffer = new byte[20];
 
         /// <summary>
-        /// Gets the TextEncoding
+        /// Gets the text encoding used to write comments.
         /// </summary>
         private readonly Encoding textEncoding;
 
         /// <summary>
-        /// Gets or sets the quantizer for reducing the color count.
+        /// Gets or sets the quantizer used to generate the color palette.
         /// </summary>
         private readonly IQuantizer quantizer;
 
         /// <summary>
-        /// Gets or sets a value indicating whether the metadata should be ignored when the image is being decoded.
+        /// A flag indicating whether to ingore the metadata when writing the image.
         /// </summary>
         private readonly bool ignoreMetadata;
 
         /// <summary>
-        /// The number of bits requires to store the image palette.
+        /// The number of bits requires to store the color palette.
         /// </summary>
         private int bitDepth;
 

src/ImageSharp/Formats/Gif/GifImageFormatDetector.cs

@@ -16,17 +16,11 @@ namespace SixLabors.ImageSharp.Formats.Gif
         /// <inheritdoc/>
         public IImageFormat DetectFormat(ReadOnlySpan<byte> header)
         {
-            if (this.IsSupportedFileFormat(header))
-            {
-                return ImageFormats.Gif;
-            }
-
-            return null;
+            return this.IsSupportedFileFormat(header) ? ImageFormats.Gif : null;
         }
 
         private bool IsSupportedFileFormat(ReadOnlySpan<byte> header)
         {
-            // TODO: This should be in constants
             return header.Length >= this.HeaderSize &&
                    header[0] == 0x47 && // G
                    header[1] == 0x49 && // I

src/ImageSharp/Formats/Gif/IGifDecoderOptions.cs

@@ -16,7 +16,7 @@ namespace SixLabors.ImageSharp.Formats.Gif
         bool IgnoreMetadata { get; }
 
         /// <summary>
-        /// Gets the encoding that should be used when reading comments.
+        /// Gets the text encoding that should be used when reading comments.
         /// </summary>
         Encoding TextEncoding { get; }
 

src/ImageSharp/Formats/Gif/IGifEncoderOptions.cs

@@ -17,12 +17,12 @@ namespace SixLabors.ImageSharp.Formats.Gif
         bool IgnoreMetadata { get; }
 
         /// <summary>
-        /// Gets the encoding that should be used when writing comments.
+        /// Gets the text encoding used to write comments.
         /// </summary>
         Encoding TextEncoding { get; }
 
         /// <summary>
-        /// Gets the quantizer for reducing the color count.
+        /// Gets the quantizer used to generate the color palette.
         /// </summary>
         IQuantizer Quantizer { get; }
     }

src/ImageSharp/Formats/Gif/ImageExtensions.cs

@@ -1,10 +1,8 @@
 // Copyright (c) Six Labors and contributors.
 // Licensed under the Apache License, Version 2.0.
 
-using System;
 using System.IO;
 using SixLabors.ImageSharp.Advanced;
-using SixLabors.ImageSharp.Formats;
 using SixLabors.ImageSharp.Formats.Gif;
 using SixLabors.ImageSharp.PixelFormats;
 
@@ -16,7 +14,7 @@ namespace SixLabors.ImageSharp
     public static partial class ImageExtensions
     {
         /// <summary>
-        /// Saves the image to the given stream with the gif format.
+        /// Saves the image to the given stream in the gif format.
         /// </summary>
         /// <typeparam name="TPixel">The pixel format.</typeparam>
         /// <param name="source">The image this method extends.</param>
@@ -27,7 +25,7 @@ namespace SixLabors.ImageSharp
              => source.SaveAsGif(stream, null);
 
         /// <summary>
-        /// Saves the image to the given stream with the gif format.
+        /// Saves the image to the given stream in the gif format.
         /// </summary>
         /// <typeparam name="TPixel">The pixel format.</typeparam>
         /// <param name="source">The image this method extends.</param>