[feature / idea] add a translucency counter

[TeusDev]

My idea is to inform the user with the exact number the actual window is with at the translucency option. Maybe add some kind of interaction to it, like clicking the label to reset the translucency in a default value (255). Also adding some arrows that could be enabled on the extension config (disabled by default) for more user controllability aka sort of a UI UX i would say hah. Thats it, thx for that awesome extension, single monitor coders bless u <3