writejpg.c:                     img_color(img) = IMAGE_COLOR_B;
writejpg.c:                     img_color(img) = IMAGE_COLOR_C;
writejpg.c:                     img_color(img) = IMAGE_COLOR_C;
writepng.c:        img_color(img) = IMAGE_COLOR_C | IMAGE_COLOR_I;
writepng.c:        img_color(img) = IMAGE_COLOR_B;
writepng.c:        img_color(img) = IMAGE_COLOR_C;
writetif.c:        img_color(img) = IMAGE_COLOR_B;
writetif.c:        img_color(img) = IMAGE_COLOR_C;
writetif.c:    if (img_color(img) == IMAGE_COLOR_B) {
writetif.c:    if (img_color(img) == IMAGE_COLOR_C) {
