#define signal_arrow_width 14
#define signal_arrow_height 15
static unsigned char signal_arrow_bits[] = {
   0x60, 0x00, 0xf0, 0x00, 0xf8, 0x01, 0xf0, 0x03, 0x60, 0x06, 0x3f, 0x0f,
   0x9f, 0x1f, 0x0f, 0x38, 0xff, 0x1c, 0x7f, 0x0e, 0x20, 0x07, 0xf0, 0x03,
   0xf8, 0x01, 0xf0, 0x00, 0x60, 0x00};
