Change of font while displaying subtitles
When the Unicode character 'THIN SPACE' (code point 0x2009) is found in subtitles and the current font is Serif then all the text after the thin space is in Sans Serif.
When the Unicode character 'THIN SPACE' (code point 0x2009) is found in subtitles and the current font is Serif then all the text after the thin space is in Sans Serif.
VideoLAN code repository instance