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diff --git a/engines/sci/graphics/remap.h b/engines/sci/graphics/remap.h
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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef SCI_GRAPHICS_REMAP_H
+#define SCI_GRAPHICS_REMAP_H
+
+#include "common/array.h"
+#include "common/serializer.h"
+
+namespace Sci {
+
+class GfxScreen;
+
+/**
+ * This class handles color remapping for the QFG4 demo.
+ */
+class GfxRemap {
+private:
+	enum ColorRemappingType {
+		kRemapNone = 0,
+		kRemapByRange = 1,
+		kRemapByPercent = 2
+	};
+
+public:
+	GfxRemap(GfxPalette *_palette);
+
+	void resetRemapping();
+	void setRemappingPercent(byte color, byte percent);
+	void setRemappingRange(byte color, byte from, byte to, byte base);
+	bool isRemapped(byte color) const {
+		return _remapOn && (_remappingType[color] != kRemapNone);
+	}
+	byte remapColor(byte remappedColor, byte screenColor);
+	void updateRemapping();
+
+private:
+	GfxPalette *_palette;
+
+	bool _remapOn;
+	ColorRemappingType _remappingType[256];
+	byte _remappingByPercent[256];
+	byte _remappingByRange[256];
+	uint16 _remappingPercentToSet;
+};
+} // End of namespace Sci
+
+#endif