Working on much more flexible fonts for #Lagrange v1.8. The previously hardcoded font library is now defined by a set of .fontpack files.
Use of platform-dependent text/font APIs (i.e., system fonts) is likely too much to include in this release, but now at least you'll be able to freely customize the UI and pages with any TTF fonts you have available.
@poorchop Yes, there is a bunch of ways to do that: overall UI scale factor that affects everything, page scaling (50%-200%), and individual fonts can be resized, too.