Today I played with some black nylon netting. The pvc pipe/fencing display panels we made last year are a little too see-thru and I'm trying to make them less so.
Trouble is, it can't get opaque. I'm trying for something like window screening.
It isn't perfect, but it is a bit shaded. I think it'll help, especially if I make a point of matching frames on both sides so you don't see the back of any frames.
Live and learn. Looking forward to this second art show.