I figured it out. There should be a file (more accurately, a link to a file)
/etc/fonts/conf.d/01-trisquel.conf. You will need to edit this file to
include the names of your chosen fonts as highest priority (above the
existing <family> entries).
- [Trisquel-users] Changing system fonts (especially monospace) LDrumbler
- Re: [Trisquel-users] Changing system fonts (especially m... gramex
- Re: [Trisquel-users] Changing system fonts (especially m... tegskywalker
- Re: [Trisquel-users] Changing system fonts (especially m... LDrumbler
- Re: [Trisquel-users] Changing system fonts (especially m... LDrumbler