#define shade_width 10
#define shade_height 10
static unsigned char shade_bits[] = {
   0x7c, 0x00, 0xfe, 0x00, 0xff, 0x01, 0xff, 0x01, 0xff, 0x01, 0xff, 0x01,
   0xff, 0x01, 0xfe, 0x00, 0x7c, 0x00, 0x00, 0x00 };