#define pat_squares_width 16
#define pat_squares_height 16
static char pat_squares_bits[] = {
   0x63, 0x63, 0x1b, 0x1b, 0x18, 0x18, 0x81, 0x81, 0xb1, 0xb1, 0x36, 0x36,
   0x06, 0x06, 0x60, 0x60, 0x63, 0x63, 0x1b, 0x1b, 0x18, 0x18, 0x81, 0x81,
   0xb1, 0xb1, 0x36, 0x36, 0x06, 0x06, 0x60, 0x60};