usage: gftools-check-vtt-compatibility [-h] [--count] [--compatible] hinted unhinted

Check a hinted font will successfully transfer
  vtt instructions to an unhinted font.

positional arguments:
  hinted        Hinted font
  unhinted      Unhinted font

options:
  -h, --help    show this help message and exit
  --count       Check fonts have the same glyph count
  --compatible  Check glyphs share same coordinates and composites