Autodesk Fusion 360 uses Qt gui library. Some screenshots of its UI : https://www.google.com/search?q=%22autodesk+fusion+360%22+ui&source=lnms&tbm=isch https:

Autodesk Fusion 360 uses Qt gui library. Some screenshots of its UI : https://www.google.com/search?q=%22autodesk+fusion+360%22+ui&source=lnms&tbm=isch https://www.google.com/search?q=%22autodesk+fusion+360%22+ui... Here are some more CAD apps using Qt: https://en.wikipedia.org/wiki/Category:Engineering_software_that_uses_Qt https://en.wikipedia.org/wiki/Category:Engineering_software_... (Although Fusion 360 was launched June 2013, nobody edited the wiki page to include it yet.)