Include black overlay from madalynrose/plexiglass?

[karlhorky]

Hi @marcysutton, thanks for this awesome project!

What do you think of also including the black overlay (maybe as an option?) from @madalynrose's plexiglass?

Would you accept a pull request for this?

[nedredmond]

@marcysutton this is exactly what I was suggesting with no mouse, no screen! 😆

A transparent overlay in addition to hiding the mouse could also be a great move because a user could orient themselves by hover styles