[tromp]

Although this differs from carbon in offering a huge selection of fonts, I had trouble finding fixed-width ones other than the default. I would suggest adding a fixed-width check-box that limits the font choice accordingly.

[harha]

The fonts don't change with my browser, not sure if it's because of Safari or the domain blockers I use.

That being said, there was a recent discussion on dev fonts that might be interesting: https://news.ycombinator.com/item?id=25159038

Edit: Seems to be the domains that are blocked, doesn't work with Firefox or Chromium either. I might need to open fonts.google.com

Edit Edit: this seems to be the issue https://github.com/lightswitch05/hosts#google-fonts