Unknown font icons displayed instead of font name

[grofaty]

a) I have downloaded the latest Pinta 2.2-dev from master repository https://github.com/PintaProject/Pinta/actions/runs/7326780534/artifacts/1134741800 and installed on Ubuntu 23.10
b) On Ubuntu I have set Language settings to Slovenian and logged-off/logged-in.

1. From left site tools select Text and click on canvas.
2. Click on font from toolbar. Font dialog opens.
3. Select some font. I did "Noto Sans Brahmi Regular" (just one random font).
4. Now first problem appears. In the bottom it should be displayed a sample of text how font will look like if selected. But instead there are just "missing" font icons.
5. If I select this font. Another problem appears. In font toolbar, instead of font name just unknown font icons are displayed.

See attachment.

[Cameron White (cameronwhite91)]

This is the standard GTK font dialog and widget so there's nothing Pinta-specific happening here. My guess is that this font doesn't have glyphs for those characters, since https://fonts.google.com/noto/specimen/Noto+Sans+Brahmi indicates that it's for a specific language