#define rstipple_width 16
#define rstipple_height 16
static char rstipple_bits[] = {
   0xaa, 0xaa, 0x55, 0x55, 0xaa, 0xaa, 0x55, 0x55, 0xaa, 0xaa, 0x55, 0x55,
   0xaa, 0xaa, 0x55, 0x55, 0xaa, 0xaa, 0x55, 0x55, 0xaa, 0xaa, 0x55, 0x55,
   0xaa, 0xaa, 0x55, 0x55, 0xaa, 0xaa, 0x55, 0x55};