1#define grey_width 16
2#define grey_height 16
3static char grey_bits[] = {
4   0x11, 0x11, 0x44, 0x44, 0x11, 0x11, 0x44, 0x44, 0x11, 0x11, 0x44, 0x44,
5   0x11, 0x11, 0x44, 0x44, 0x11, 0x11, 0x44, 0x44, 0x11, 0x11, 0x44, 0x44,
6   0x11, 0x11, 0x44, 0x44, 0x11, 0x11, 0x44, 0x44};
7