#define chet_width 16
#define chet_height 16
static char chet_bits[] = {
   0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0xf8, 0x07, 0xf8, 0x0f, 0xf8, 0x0f,
   0x10, 0x06, 0x18, 0x06, 0x18, 0x06, 0x18, 0x06, 0x18, 0x06, 0x18, 0x06,
   0x18, 0x06, 0x08, 0x02, 0x00, 0x00, 0x00, 0x00};