Include all the relevant palettes in the asset browser.

OpenRA.Mods.TS/Traits/World/TSShroudPalette.cs

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+#region Copyright & License Information
+/*
+ * Copyright 2007-2015 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using OpenRA.Graphics;
+using OpenRA.Mods.Common.Traits;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.TS.Traits
+{
+	[Desc("Adds the hard-coded shroud palette to the game")]
+	class TSShroudPaletteInfo : ITraitInfo
+	{
+		[Desc("Internal palette name")]
+		public readonly string Name = "shroud";
+
+		public object Create(ActorInitializer init) { return new TSShroudPalette(this); }
+	}
+
+	class TSShroudPalette : ILoadsPalettes, IProvidesAssetBrowserPalettes
+	{
+		readonly TSShroudPaletteInfo info;
+
+		public TSShroudPalette(TSShroudPaletteInfo info) { this.info = info; }
+
+		public void LoadPalettes(WorldRenderer wr)
+		{
+			Func<int, uint> makeColor = i =>
+			{
+				if (i < 128)
+					return (uint)(int2.Lerp(255, 0, i, 127) << 24);
+				return 0;
+			};
+
+			wr.AddPalette(info.Name, new ImmutablePalette(Enumerable.Range(0, Palette.Size).Select(i => makeColor(i))));
+		}
+
+		public IEnumerable<string> PaletteNames { get { yield return info.Name; } }
+	}
+}