#define bridge_width 16
#define bridge_height 16
// static unsigned char bridge_bits[] = {
static char bridge_bits[] = {
   0x01, 0x80, 0x01, 0x80, 0xfe, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x82, 0x20,
   0xff, 0xff, 0x82, 0x20, 0x82, 0x20, 0xff, 0xff, 0x82, 0x20, 0x00, 0x00,
   0x00, 0x00, 0xfe, 0x7f, 0x01, 0x80, 0x01, 0x80};