#define beta_width 15
#define beta_height 20
static char beta_bits[] = {
   0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x80, 0x18, 0x80, 0x18, 0x40, 0x18,
   0x40, 0x08, 0x40, 0x07, 0x20, 0x0c, 0x20, 0x0c, 0x20, 0x0c, 0x10, 0x0c,
   0x30, 0x06, 0xd0, 0x03, 0x08, 0x00, 0x08, 0x00, 0x08, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00};