-int print_grey_colour(drawing *dr, int hatch, float grey);
-int print_rgb_colour(drawing *dr, int hatch, float r, float g, float b);
+int print_grey_colour(drawing *dr, float grey);
+int print_hatched_colour(drawing *dr, int hatch);
+int print_rgb_mono_colour(drawing *dr, float r, float g, float b, int mono);
+int print_rgb_grey_colour(drawing *dr, float r, float g, float b, float grey);
+int print_rgb_hatched_colour(drawing *dr, float r, float g, float b,
+ int hatch);