#define observer_width 16
#define observer_height 16
static unsigned char observer_bits[] = {
   0x00, 0x00, 0x42, 0x22, 0x44, 0x32, 0x4c, 0x12, 0xf8, 0x0f, 0x2e, 0x19,
   0x13, 0x32, 0xd1, 0xe2, 0xd1, 0x72, 0x13, 0x1a, 0x2c, 0x0d, 0xf8, 0x17,
   0x48, 0x32, 0x48, 0x06, 0x44, 0x04, 0x00, 0x00};
