#define circle_width 15
#define circle_height 15
static unsigned char circle_bits[] = {
   0xf0, 0x07, 0xf8, 0x0f, 0xfc, 0x1f, 0xfe, 0x3f, 0xff, 0x7f, 0x01, 0x44,
   0x5d, 0x55, 0x51, 0x55, 0x57, 0x45, 0x51, 0x74, 0xff, 0x7f, 0xfe, 0x3f,
   0xfc, 0x1f, 0xf8, 0x0f, 0xf0, 0x07};
