Ickbys Frameless UI
One of the core developers of FreeCAD, @ickby, experimented with an alternative UI for FreeCAD. It's easier to show then describe in words, please see his proof of concept
This work is not complete but more as a proof of concept. Below an explanation will be provided about what would be needed to complete this project.
- Understanding of the FreeCAD UI
Issues and phases that would be needed to overcome this endeavour