Color.cs Cleanup (#6772)

Co-authored-by: ArtisticRoomba <145879011+ArtisticRoomba@users.noreply.github.com>

Author: sleepyyapril

RELEASE-NOTES.md

@@ -39,15 +39,15 @@ END TEMPLATE-->
 
 ### New features
 
-*None yet*
+* The `Color` API now includes a `bool TryFromHex(ReadOnlySpan<char> hexColor, out Color color)` signature for returning a `bool` and `out Color` instead of a `Color?`.
 
 ### Bugfixes
 
 *None yet*
 
 ### Other
 
-*None yet*
+* The `Color` API is now better documented.
 
 ### Internal