#define line_wave_width 16
#define line_wave_height 16
static char line_wave_bits[] = {
   0xfe, 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfd, 0xff, 0xfd, 0xff, 0xfb, 0xff,
   0xe7, 0xff, 0x1f, 0xff, 0xff, 0xf8, 0xff, 0xe7, 0xff, 0xdf, 0xff, 0xbf,
   0xff, 0xbf, 0xff, 0x7f, 0xff, 0x7f, 0xff, 0x7f};