#define chaser_width 16
#define chaser_height 16
static char chaser_bits[] = {
   0x07, 0xe0, 0xfb, 0xdf, 0xfd, 0xbf, 0xc6, 0x63, 0x86, 0x61, 0xfe, 0x7f,
   0xfe, 0x7f, 0xfe, 0x7f, 0xfe, 0x6f, 0x0e, 0x70, 0xf6, 0x7f, 0xfe, 0x7f,
   0x3e, 0x7c, 0xdd, 0xbb, 0xed, 0xb7, 0xf3, 0xcf};