This detects subs, but only if they have a halo, was never completed, op closed thread.
https://forum.doom9.org/showthread.p...36#post1782036
EDIT: Finds halo color and swells all instances several pixels, does the same with the text color,
where both swellings overlap (halo swells into text, and text swells into halo), then you have detected subtitle.
EDIT: Detector works, just never did repair script.