How to change the list of characters that MacOS QuickLook displays when previewing font files (ttf, otf etc)

By default MacOS's built in QuickLook feature displays only latin characters + figures when previewing font files.

This is what it looks like: typical QuickLook preview window for a font file

I need to be able to quickly see if the font contains non-latin characters, for example Cyrillic. I am sure there is a way to edit some .plist file inside macOS to modify the list of characters that QuickLook shows for a font in order to add some non latin characters. I even did it once, but it was a few releases of MacOS ago, when System and Library folders were not hidden and thus were searchable.

Could someone please advise, where this .plist file may be located now in MacOS (HighSierra)? Thanks!