We use GNU Unifont in Solvespace for the text window/property browser. It's built right into the executable. This turned out to be amazingly useful. Some people have CJK stuff in their designs and it "just works" on all platforms. I was also looking into hole annotations in CAD and was pleased to see the symbols for counter-bore and counter-sink are both already there in unifont.
You can see unifont in the experimental web version here: https://cad.apps.dgramop.xyz/
That's such a cool effect from just the choice of font. (Though I guess there are countless human hours spent on unifont and unicode as a whole)
But I love the idea that even if your bronze age CAD guy wrote all the solid names in Linear A, no problem!
That web version is very neat. Solvespace is by far my favorite cad, it ls hard to explain exactly why because it really is quite limited compared to other cad packages, but I think it is mainly because of the fluidity and shear joy of operation while expressing constraints.
One of these days I need to dive into the code and figure out a replacement for the modal "can not create constraint" dialogs as those are the worst part of the whole experience.
Wow, the web version is neat in its simplicity! Thank you for the work on Solvespace. It's far and away my favorite MCAD program and always my first go-to when I need to crank out a quick fixture to test PCBs. It's really so pleasant and easy to work with as long as my geometry is relatively basic (which it almost always is given my limited scope of work with mechanical design). I'm sorry I don't have any comments on the relevant topic of the fonts, just was excited to see Solvespace mentioned.