Something minor that takes a little bit of the immersion out of community puzzles for me is the lack of the little sigil icons that appear when you enter a puzzle, as well as the icons for connectors, fans, etc., absent from both puzzle entrances and signs.
I think it would be a really nice touch if we could link tetrominoes to plasma barriers so that they show up upon entering a puzzle (as well as being Xed out when completed). For the element icons, I think it could be integrated into the tetrominoes. Call it “Required Actors” or something like that, and it be a list of all the icons (Connector, Hexahedron, Fan, Recorder) that we can choose to include. When a sigil with “Required Actors” are linked to signs and (hopefully) plasma barriers, those icons will show up beside them. (But I also think it would be useful to allow signs to toggle the icons on/off).
It’s a small feature, but it would go a long way towards making community puzzles feel that much more integrated into the game.