#define minus_width 15
#define minus_height 11
static char minus_bits[] = {
   0x00, 0x00, 0x00, 0x00, 0xfc, 0x1f, 0x04, 0x18, 0x08, 0x0c, 0x10, 0x06,
   0x20, 0x03, 0xc0, 0x01, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00};