shroud: it works. perf is pretty ugly, and there are a lot of small bugs.

OpenRa.FileFormats/IPaletteRemap.cs

@@ -0,0 +1,9 @@
+using System;
+using System.Drawing;
+namespace OpenRa.FileFormats
+{
+	public interface IPaletteRemap
+	{
+		Color GetRemappedColor(Color original, int index);
+	}
+}