#define circle_width 16
#define circle_height 16
#define circle_x_hot 7
#define circle_y_hot 7
static char circle_bits[] = {
   0x00, 0x00, 0xe0, 0x03, 0x18, 0x0c, 0x04, 0x10, 0x04, 0x10, 0x02, 0x20,
   0x02, 0x20, 0x02, 0x20, 0x02, 0x20, 0x02, 0x20, 0x04, 0x10, 0x04, 0x10,
   0x18, 0x0c, 0xe0, 0x03, 0x00, 0x00, 0x00, 0x00};