Just a couple ideas I thought of while playing:
-lamps as white dots (would really help to see areas that aren't lit up in the day)
-support for bob's pipes? Currently they show up blue like production buildings
-oil refineries/chemical plants/storage tanks another color. Maybe orange? Or purple to match the pipes?
-inserter/chest colors? Might be confused with belts but it'd be interesting to see a mock-up
