#define grey21_width 16
#define grey21_height 16
static char grey21_bits[] = {
 0x88,0x88,0x55,0x55,0x20,0x20,0x55,0x55,0x88,0x88,0x55,0x55,0x02,0x02,0x55,
 0x55,0x88,0x88,0x55,0x55,0x20,0x20,0x55,0x55,0x88,0x88,0x55,0x55,0x02,0x02,
 0x55,0x55};