Rewrite the image editor
Actually, it will be difficult to replace this editor by a command line interface right now, maybe there's some room for improvements.
AppImage packaging
Hardware accelerated rendering of vector graphics
Blender does an excellent job in converting SVG into OBJ, STL and Collada, there's no need to support SVG directly.
Replace the current internal graph API by Graphstore
Fixed in the commit https://sourceforge.net/p/tuer/git/ci/60130037e17adb44e8a3b2b697b7a67bc49879f8/
Replace the current internal graph API by Graphstore