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diff --git a/src/utils/color/rgba.hpp b/src/utils/color/rgba.hpp
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+/*
+ * UltraStar Deluxe - Karaoke Game
+ *
+ * UltraStar Deluxe 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; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef RGBA_COLOR_HPP
+#define RGBA_COLOR_HPP
+
+#include "rgb.hpp"
+
+namespace usdx
+{
+    class RgbaColor : public RgbColor
+	{
+	private:
+		uint8_t alpha;
+
+	public:
+		RgbaColor(uint8_t red, uint8_t green, uint8_t blue, uint8_t alpha);
+		RgbaColor(const RgbaColor& color);
+		RgbaColor(const RgbColor& color, uint8_t alpha = 255);
+		RgbaColor& operator=(const RgbaColor& color);
+		RgbaColor& operator=(const RgbColor& color);
+
+		uint8_t get_alpha(void) const;
+
+		virtual const GLubyte* get_array(size_t len) const;
+		int get_array_comonent_count(void) const;
+	};
+};
+
+#endif