When using single-line fonts, turn off the weld button on the font settings, or it’ll get confused. TrueType and OpenType don’t have the ability to render “open” shapes, so single line fonts usually have a pair of lines on top of each other.
There’s a type of font called SHX, which is an old Autodesk / AutoCad format that I’m adding support for. It’s partially done, but will still be a while - their arc handling is pretty strange, and once that’s working I have to figure out how to add these to the font list.
