#define stipple_width 16
#define stipple_height 16
static char stipple_bits[] = {
   0xee, 0xee, 0x55, 0x55, 0xba, 0xbb, 0x55, 0x55, 0xee, 0xee, 0x55, 0x55,
   0xba, 0xbb, 0x55, 0x55, 0xee, 0xee, 0x55, 0x55, 0xba, 0xbb, 0x55, 0x55,
   0xee, 0xee, 0x55, 0x55, 0xba, 0xfb, 0x55, 0x55};