#define gray1_width 16
#define gray1_height 16
static short gray1_bits[] = {
   0x5555, 0xaaaa, 0x5555, 0xaaaa,
   0x5555, 0xaaaa, 0x5555, 0xaaaa,
   0x5555, 0xaaaa, 0x5555, 0xaaaa,
   0x5555, 0xaaaa, 0x5555, 0xaaaa};