static unsigned char triang_21_bits[] = {
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xff, 0x03, 0x0c, 0x80, 0x03,
   0x14, 0x60, 0x03, 0x24, 0x18, 0x03, 0x44, 0x86, 0x02, 0x84, 0x41, 0x02,
   0x84, 0x21, 0x02, 0x84, 0x22, 0x02, 0x48, 0x1c, 0x02, 0x48, 0x18, 0x02,
   0x28, 0x24, 0x02, 0x28, 0x42, 0x02, 0x98, 0x81, 0x02, 0x58, 0x80, 0x01,
   0xf8, 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00};