Build fixes due to re-base.

src/ImageSharp.Formats.Bmp/BmpEncoder.cs

@@ -31,7 +31,7 @@ namespace ImageSharp.Formats
         /// <param name="stream">The <see cref="Stream"/> to encode the image data to.</param>
         /// <param name="options">The options for the encoder.</param>
         public void Encode<TColor>(Image<TColor> image, Stream stream, IBmpEncoderOptions options)
-            where TColor : struct, IPackedPixel, IEquatable<TColor>
+            where TColor : struct, IPixel<TColor>
         {
             BmpEncoderCore encoder = new BmpEncoderCore(options);
             encoder.Encode(image, stream);

src/ImageSharp.Formats.Gif/GifDecoder.cs

@@ -30,7 +30,7 @@ namespace ImageSharp.Formats
         /// <param name="stream">The <see cref="Stream"/> containing image data.</param>
         /// <param name="options">The options for the decoder.</param>
         public void Decode<TColor>(Image<TColor> image, Stream stream, IGifDecoderOptions options)
-            where TColor : struct, IPackedPixel, IEquatable<TColor>
+            where TColor : struct, IPixel<TColor>
         {
             new GifDecoderCore<TColor>(options).Decode(image, stream);
         }

src/ImageSharp.Formats.Gif/GifEncoder.cs

@@ -15,7 +15,7 @@ namespace ImageSharp.Formats
     {
         /// <inheritdoc/>
         public void Encode<TColor>(Image<TColor> image, Stream stream, IEncoderOptions options)
-            where TColor : struct, IPackedPixel, IEquatable<TColor>
+            where TColor : struct, IPixel<TColor>
         {
             IGifEncoderOptions gifOptions = GifEncoderOptions.Create(options);
 

src/ImageSharp.Formats.Gif/GifEncoderCore.cs

@@ -237,7 +237,7 @@ namespace ImageSharp.Formats
         /// <param name="image">The <see cref="ImageBase{TColor}"/> to be encoded.</param>
         /// <param name="writer">The stream to write to.</param>
         private void WriteComments<TColor>(Image<TColor> image, EndianBinaryWriter writer)
-            where TColor : struct, IPackedPixel, IEquatable<TColor>
+            where TColor : struct, IPixel<TColor>
         {
             if (this.options.IgnoreMetadata == true)
             {

src/ImageSharp.Formats.Png/PngDecoder.cs

@@ -47,7 +47,7 @@ namespace ImageSharp.Formats
         /// <param name="stream">The <see cref="Stream"/> containing image data.</param>
         /// <param name="options">The options for the decoder.</param>
         public void Decode<TColor>(Image<TColor> image, Stream stream, IPngDecoderOptions options)
-            where TColor : struct, IPackedPixel, IEquatable<TColor>
+            where TColor : struct, IPixel<TColor>
         {
             new PngDecoderCore(options).Decode(image, stream);
         }