Dear Maintainer,

i like xtrlock because it can lock inputs while video playback. But there are some features i would like to see:

- please add a command line option that enables the padlock courser to be hidden after some time to have a clean view to the screen.
- please add a feature which allows certain windows to still receive certain commands, for example still enable keyboard commands to pause/seek video playback.
- blank screen after program close (for example if mpv ended and closed, blank the screen.)
- still enable pre defined keyboard input but locked to one window (useful for vdr-sxfe or others)

thanks a lot and keep up the good work