#define grey4_width 16
#define grey4_height 16
static char grey4_bits[] = {
   0x00, 0x00, 0x00, 0x00, 0x20, 0x02, 0x00, 0x00, 0x88, 0x08, 0x00, 0x00,
   0x22, 0x22, 0x00, 0x00, 0x88, 0x08, 0x00, 0x00, 0x22, 0x22, 0x00, 0x00,
   0x88, 0x08, 0x00, 0x00, 0x20, 0x02, 0x00, 0x00};
