#define contrast_width 15
#define contrast_height 15
static char contrast_bits[] = {
   0x00, 0x00, 0x00, 0x00, 0xc0, 0x01, 0x30, 0x07, 0x08, 0x0f, 0x08, 0x0f,
   0x04, 0x1f, 0x04, 0x1f, 0x04, 0x1f, 0x08, 0x0f, 0x08, 0x0f, 0x30, 0x07,
   0xc0, 0x01, 0x00, 0x00, 0x00, 0x00};