Cleanup

src/ImageSharp/Formats/Png/PngChunk.cs

@@ -10,7 +10,7 @@ namespace SixLabors.ImageSharp.Formats.Png
     /// </summary>
     internal readonly struct PngChunk
     {
-        public PngChunk(int length, PngChunkType type, IManagedByteBuffer data = null, uint crc = default)
+        public PngChunk(int length, PngChunkType type, IManagedByteBuffer data = null, uint crc = 0)
         {
             this.Length = length;
             this.Type = type;
@@ -28,7 +28,7 @@ namespace SixLabors.ImageSharp.Formats.Png
 
         /// <summary>
         /// Gets the chunk type.
-        /// The chunk type value the UInt32BigEndian encoding of its 4 ASCII characters.
+        /// The value is the equal to the UInt32BigEndian encoding of its 4 ASCII characters.
         /// </summary>
         public PngChunkType Type { get; }
 

src/ImageSharp/Formats/Png/PngChunkType.cs

@@ -3,6 +3,9 @@
 
 namespace SixLabors.ImageSharp.Formats.Png
 {
+    /// <summary>
+    /// Contains a list of possible chunk types.
+    /// </summary>
     internal enum PngChunkType : uint
     {
         Header = 1229472850U,       // IHDR

src/ImageSharp/Formats/Png/PngDecoderCore.cs

@@ -1241,9 +1241,9 @@ namespace SixLabors.ImageSharp.Formats.Png
 
             if (this.crc.Value != chunk.Crc)
             {
-                string chunkName = Encoding.UTF8.GetString(this.chunkTypeBuffer, 0, 4);
+                string chunkTypeName = Encoding.UTF8.GetString(this.chunkTypeBuffer, 0, 4);
 
-                throw new ImageFormatException($"CRC Error. PNG {chunkName} chunk is corrupt!");
+                throw new ImageFormatException($"CRC Error. PNG {chunkTypeName} chunk is corrupt!");
             }
         }
 

tests/ImageSharp.Tests/Formats/Png/PngChunkTests.cs

@@ -23,7 +23,7 @@ namespace SixLabors.ImageSharp.Tests.Formats.Png
 
         private static PngChunkType GetType(string text)
         {
-            return (PngChunkType)BinaryPrimitives.ReadInt32BigEndian(Encoding.UTF8.GetBytes(text).AsSpan());
+            return (PngChunkType)BinaryPrimitives.ReadInt32BigEndian(Encoding.UTF8.GetBytes(text));
         }
     }
-}
+}