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diff --git a/apps/graphics/traveler/include/trv_color.h b/apps/graphics/traveler/include/trv_color.h
new file mode 100644
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+++ b/apps/graphics/traveler/include/trv_color.h
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+/****************************************************************************
+ * apps/graphics/traveler/include/trv_color.h
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_COLOR_H
+#define __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_COLOR_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include "trv_types.h"
+#include "trv_graphics.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+struct trv_color_rgb_s
+{
+  uint8_t red;
+  uint8_t green;
+  uint8_t blue;
+};
+
+struct trv_color_lum_s
+{
+  float red;
+  float green;
+  float blue;
+  float luminance;
+};
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+bool trv_color_allocate(FAR struct trv_palette_s *pinfo);
+void trv_color_endmapping(void);
+trv_pixel_t trv_color_rgb2pixel(FAR struct trv_color_rgb_s *pixel);
+void trv_color_pixel2lum(trv_pixel_t pixel, FAR struct trv_color_lum_s *lum);
+trv_pixel_t trv_color_lum2pixel(FAR struct trv_color_lum_s *lum);
+
+#endif /* __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_COLOR_H */