[Feature] Display panel on top of applications by rule

I would like to see an app-specific rule for displaying or hiding the panel in the future. Make a white and black list of applications when the panel will be displayed or hidden.

Usage scenarios: Browser needs panel with tray, sound setting, screenshooter, time and keyboard layout. This is all convenient to see and use at all times. But in opening a movie player it becomes unnecessary and disturbing.

This is one of the scenarios, and they can be different.