Make nights pitch black, customise the lengths of day/night cycles, enable night only attacks and darken space platforms as they get further from the sun! All configurable.
Since Clockwork was last updated ages ago and seems like it won't be coming to 2.0 I'm really glad someone took up making a new version. I never play Factorio without it.
Have you considered doing Nightfall too?
I really like Nightfall too! I could add similar night-only attacks as an option in this mod, as long as it fits. I would have it entirely disabled by default to avoid the potential performance impact though.