#define shade_width 10
#define shade_height 10
static unsigned char shade_bits[] = {
   0x00, 0x00, 0x30, 0x00, 0x78, 0x00, 0xfc, 0x00, 0xfe, 0x01, 0xb6, 0x01,
   0x30, 0x00, 0x30, 0x00, 0x30, 0x00, 0x00, 0x00 };