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diff --git a/libdimension/dimension/model/pigments.h b/libdimension/dimension/model/pigments.h
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+/*************************************************************************
+ * Copyright (C) 2009-2014 Tavian Barnes <tavianator@tavianator.com>     *
+ *                                                                       *
+ * This file is part of The Dimension Library.                           *
+ *                                                                       *
+ * The Dimension Library is free software; you can redistribute it and/  *
+ * or modify it under the terms of the GNU Lesser General Public License *
+ * as published by the Free Software Foundation; either version 3 of the *
+ * License, or (at your option) any later version.                       *
+ *                                                                       *
+ * The Dimension Library 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  *
+ * Lesser General Public License for more details.                       *
+ *                                                                       *
+ * You should have received a copy of the GNU Lesser General Public      *
+ * License along with this program.  If not, see                         *
+ * <http://www.gnu.org/licenses/>.                                       *
+ *************************************************************************/
+
+/**
+ * @file
+ * Pre-defined pigments.
+ */
+
+/**
+ * A solid color.
+ * @param[in] pool  The memory pool to allocate from.
+ * @param[in] color  The color of the pigment.
+ * @return A pigment with the color \p color everywhere.
+ */
+dmnsn_pigment *dmnsn_new_solid_pigment(dmnsn_pool *pool, dmnsn_tcolor color);
+
+/**
+ * An image map.  The image (regardless of its real dimensions) is projected
+ * on the x-y plane in tesselating unit squares.
+ * @param[in] pool  The memory pool to allocate from.
+ * @param[in] canvas  The canvas holding the image.
+ * @return An image-mapped pigment.
+ */
+dmnsn_pigment *dmnsn_new_canvas_pigment(dmnsn_pool *pool, dmnsn_canvas *canvas);
+
+/**
+ * Pigment map flags.
+ */
+typedef enum dmnsn_pigment_map_flags {
+  DMNSN_PIGMENT_MAP_REGULAR, /**< Calculate linear color gradients. */
+  DMNSN_PIGMENT_MAP_SRGB /**< Calculate sRGB color gradients. */
+} dmnsn_pigment_map_flags;
+
+/**
+ * Construct a pigment map.
+ * @param[in] pool  The memory pool to allocate from.
+ * @return An empty pigment map.
+ */
+dmnsn_map *dmnsn_new_pigment_map(dmnsn_pool *pool);
+
+/**
+ * A pigment-mapped pigment.
+ * @param[in] pool  The memory pool to allocate from.
+ * @param[in,out] pattern  The pattern of the pigment.
+ * @param[in,out] map  The pigment map to apply to the pattern.
+ * @param[in] flags  Gradient flags
+ * @return A pigment mapping the pattern to other pigments.
+ */
+dmnsn_pigment *dmnsn_new_pigment_map_pigment(dmnsn_pool *pool, dmnsn_pattern *pattern, dmnsn_map *map, dmnsn_pigment_map_flags flags);