Comedic inspiration moment
So I just got here to look at what themes were available and thought of an idea for Limited Visibility as a poker game where you didn't know your own cards or what cards were in the middle.
Then I went to play Sea of Thieves with my friend and while playing, she mentioned how bad she was with Row Boats. Row Boats can only be driven with oars and while boating you get turned around and can't really look at where you're driving. So I proceeded to help her by calling out when she needed to push which oar and we eventually made it all the way towards the ship.
I don't have any concrete ideas but given how little I understand light nodes in Godot I think this form of "Keep Talking and Nobody Explodes" visibility is what I'll go with.