-void color_allocate_gc(RrColor *in);
-XColor *pickColor(const RrInstance *inst, gint r, gint g, gint b);
-void reduce_depth(const RrInstance *inst, RrPixel32 *data, XImage *im);
-void increase_depth(const RrInstance *inst, RrPixel32 *data, XImage *im);
+void RrColorAllocateGC(RrColor *in);
+XColor *RrPickColor(const RrInstance *inst, gint r, gint g, gint b);
+void RrReduceDepth(const RrInstance *inst, RrPixel32 *data, XImage *im);
+void RrIncreaseDepth(const RrInstance *inst, RrPixel32 *data, XImage *im);