colBlu             28 ext/gd/libgd/gdtest.c   int colRed, colBlu;
colBlu            246 ext/gd/libgd/gdtest.c   colBlu = gdImageColorAllocate (im3, 0, 0, 255);
colBlu            248 ext/gd/libgd/gdtest.c   gdImageFilledRectangle (im3, 50, 30, 99, 59, colBlu);