From 1ac38e3fcffbcbcb9f73c906ff91c873fd5cc30a Mon Sep 17 00:00:00 2001
From: James Jackson-South <james_south@hotmail.com>
Date: Thu, 6 Aug 2020 21:39:00 +0100
Subject: [PATCH] Don't use RGB. Fixes #1275

---
 .../PixelFormats/PixelImplementations/Rgb24.cs      | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/src/ImageSharp/PixelFormats/PixelImplementations/Rgb24.cs b/src/ImageSharp/PixelFormats/PixelImplementations/Rgb24.cs
index 60cbccded..a3924b97d 100644
--- a/src/ImageSharp/PixelFormats/PixelImplementations/Rgb24.cs
+++ b/src/ImageSharp/PixelFormats/PixelImplementations/Rgb24.cs
@@ -201,7 +201,18 @@ namespace SixLabors.ImageSharp.PixelFormats
 
         /// <inheritdoc/>
         [MethodImpl(InliningOptions.ShortMethod)]
-        public void FromRgba32(Rgba32 source) => this = source.Rgb;
+        public void FromRgba32(Rgba32 source)
+        {
+#if NETSTANDARD2_0
+
+            // See https://github.com/SixLabors/ImageSharp/issues/1275
+            this.R = source.R;
+            this.G = source.G;
+            this.B = source.B;
+#else
+            this = source.Rgb;
+#endif
+        }
 
         /// <inheritdoc />
         [MethodImpl(InliningOptions.ShortMethod)]