Right to Darkness/Right to Night
Human beings have lived with a relatively strict day/night cycle for as far back as humans have been around. Yes, there was fire, but the rooms were still relatively dim, and outside was almost always just lit by the moon. Daily darkness, where not much could get done has been a part of human culture and biology forever.
Now we have the problem of light polution, where the light of electricity spreads everywhere and then you can't see the stars at night in the cities. Obviously it's good that we have electric lights. There are many people who want to be out doing things at night. But it's also a problem, because for most, nightime is a time of calm and processing the day, and it can be difficult for the human brain to know that it's time for that to happen if it has too much light coming at it.
I think in Solunarpunk societies, people would have a recognized right to darkness/night, that made itself apparent in the design of light sources and buildings, so that anyone who wanted to could enjoy the dark, cool, and quiet regardless of where they live.
This could manifest as rules about how streetlights can be made, so that the designs that are used are the ones that have the least amount of light seepage
Possibly different light zones, so the bars and clubs and other nightime activity stuff is all in one area, so those people can be safely lit, while other neighborhoods have street lights that only come on if someone is walking there, and are as unobtrusive as possible, so that people can stargaze and sleep in peace.
Inside houses, there might be automatic window darkeners that activate whenever you turn on a light, so the outside isn't affected, that then turn transparent when the light is off for long enough.
Most houses would have smart lighting with a "night mode" that kept the lighting warmer and dimmer. If you had no lights on, red floor lights will turn on if it senses you moving so you can see where you're going in safety.
Or maybe people just start using their night vision for more things. People just don't turn on the lights at night if they don't have to.
I imagine that in a right to night would also mean that it would be expected that work ends at sunset. People are free to pursue their own passions at night, and are free of daytime responsibilities. No one could pressure someone to stay later than they wanted to, but especially after sunset, because that would be extremely rude and people would call them out for it.
Stargazing would become an important family activity. Children would grow up knowing the names of all the constellations they could see, as well as the names of the planets and the stars. A sense of wonder about our universe would begin to arise again in our society.
Any moon bases built in the future would be on the side of the moon that always faces away from us, just in case the light could be seen at night. There would be observation sites on the side facing Earth that are too small to be seen, but are connected to each other underground. These observation sites would be open and available all the time, for anyone to come and marvel at the beauty of our home planet.