I'm learning https://github.com/KDAB/KDDockWidgets. I forked here for updating the example code (https://github.com/mrviit/KDDockWidgets). I also update the code changes for this issue (https://github.com/KDAB/KDDockWidgets/compare/2.1...mrviit:KDDockWidgets:2.1). The result app draw a strange rectangle that I want to change/disable as below image:
I'm trying to debug to change/disable this rectangle but no hope. Can you help me?
I configured CMake in QtCreator like this: