Description of the issue

After using the flat window mode for an extended period, when the application window is minimized, the highlight color frame of the window border does not close, and surprisingly, the highlight color frame can be dragged. Subsequently, a frame with a transparent effect remains within the highlight color frame.

To reproduce

Steps to reproduce the behavior:

1. Manage windows using tile window mode
2. Repeated execution of window switching, window creation, window maximization, and minimization operations.
3. Minimize all windows
4. See error: the highlight color frame of the window border does not close, and surprisingly, the highlight color frame can be dragged. Subsequently, a frame with a transparent effect remains within the highlight color frame.

Expected behavior

Tiled window mode should have less bug and more fluency

Evidence

Out of annoyance, I just closed the software and forgot to take screenshots.

Additional context

Add any other relevant information here.