a wider range of forms and colours of celestial bodies. things like planetary rings around the world, "local" solar system objects that orbit on a different plane to the stars, etc.

the comets are on funky planes already but i can definitely add more objects, rings around the main world would be too intrusive for what the mods goals are

also changing anything about how existing planets render is a bit tricky since it could mess with peoples worldbuilding (eg if a planet suddenly stops having a ring, or becomes a less striking shade of red etc)

Moons of gas giants might be a good idea, shouldnt hurt existing worlds.