Hi!

0.4.3 fixes a silly bug with PNG image tracing which could remove (disregard) some simple straight-lined objects like squares etc.

Additionally, I released an experimental Linux build. There's a known issue with exports not saving the files where they're supposed to (.stls are saved to the app folder instead), and exported files don't have proper .stl extension, which I'll take a look later on. The app should be otherwise usable though.