#define shade_width 15
#define shade_height 15
static unsigned char shade_bits[] = {
   0x00, 0x00, 0x00, 0x00, 0xc0, 0x01, 0xe0, 0x03, 0x70, 0x07, 0x38, 0x0e,
   0x1c, 0x1c, 0x8e, 0x38, 0xc6, 0x31, 0xe6, 0x33, 0x76, 0x37, 0x3e, 0x3e,
   0x1e, 0x3c, 0x00, 0x00, 0x00, 0x00 };