What would you all think of making a Cover element? An element that has zero functional purpose besides as a second visual layer, for covering/hiding materials beneath it. It could obviously be hidden/removed, but this way you could decorate boxes that make decisions with wires, and only show the wires leading in and out, or hide the lava chambers and whatsits.

..It could be a wall type, maybe.

I'm not talking about text boxes. I mean like a normal element, like particles or wall, that you can paint over things to hide them.

It wouldn't react with anything, though.

Text boxes being used to hide things is a bit crude, and can't be used for decoration so easily.

Presumably with the wall remove tool?

This would technically mean you wouldn't be able to put Cover material overtop of walls, but I don't see where that would be largely necessary, though it'd be awesome. And confusing.