I have a TV with a built-in video player that plays from a USB flash, and it supports both .srt and .sub files. But it shows SRT subtitles with a small font, white color and no background.
I know SRT files support setting the font using
<font>, but the TV's player ignores those tags (I tried).
So now I'm wondering if I can convert the SRT to a SUB/IDX, and then change the font and background (make the font bigger, and add a black or semi-transparent background)?