Just like LibreOffice, LibreCAD is also quite popular ... KiCAD permits color coding, 3D viewing, schematic capture, etc. This software is simply.perfect for anyone willing to design PCBs.
to form the final 3D object. Of course, you don’t have to use Inkscape. Any CAD program that puts out DXF (for example, FreeCAD or LibreCAD) ought to work with this technique.