#define pencil_width 9
#define pencil_height 9
static unsigned char pencil_bits[] = {
   0xc0, 0x00, 0x20, 0x01, 0x50, 0x01, 0x88, 0x00, 0x44, 0x00, 0x22, 0x00,
   0x11, 0x00, 0x09, 0x00, 0x07, 0x00 };