#define grass_width 24
#define grass_height 24
static char grass_bits[] = {
0x10,0x20,0x00,0x10,0x20,0x04,0x88,0x10,0x42,0x40,0x00,0x22,
0x44,0x20,0x21,0x22,0x12,0x10,0x02,0x11,0x01,0x01,0x89,0x20,
0x80,0x80,0x10,0x10,0x40,0x10,0x08,0x02,0x48,0x08,0x01,0x22,
0x04,0x11,0x21,0x80,0x08,0x11,0x21,0x88,0x00,0x10,0x04,0x80,
0x10,0x00,0x81,0x08,0x81,0x40,0x80,0x80,0x08,0x80,0x40,0x04,
0x48,0x08,0x84,0x04,0x04,0x42,0x04,0x04,0x40,0x22,0x42,0x20};