make it actually correct...

OpenRA.FileFormats/ShroudPaletteRemap.cs

@@ -43,8 +43,8 @@ namespace OpenRA.FileFormats
 				return new[] { 
 					Color.Transparent, Color.Green, 
 					Color.Blue, Color.Yellow, 
-					Color.Transparent, 
-					Color.Transparent, 
+					Color.FromArgb(128,0,0,0), 
+					Color.FromArgb(128,0,0,0), 
 					Color.FromArgb(128,0,0,0), 
 					Color.FromArgb(64,0,0,0)}[index % 8];
 			else

mods/ra/rules.yaml

@@ -187,7 +187,10 @@ World:
 		G: 0
 		B: 0
 		A: 180
-	ShroudPalette:
+	ShroudPalette@shroud:
+	ShroudPalette@fog:
+		IsFog: yes
+		Name: fog
 	Country@0:
 		Name: England
 		Race: allies