Any chance of the Infested Chamber having its lighting fixed? There are objects that are part of its environment that always give off red light, no matter what you change the other lighting to. Having red sheens on everything in a room that's supposed to be blue, for example, is incredibly distracting!
Also, perhaps in the future, it'd be nice if we could get recolourable decorations (infested ones in particular), or pools of water (recolourable) where the edges can be trimmed into a custom shape.