By special request - When the faint light of the distant stars still hurts your eyes, set your system in a universe devoid of any objects at all https://github.com/Lula-Mae/com.pa.lulamae.the-void-skybox/archive/master.zip
If you want to greenscreen planets I’d be tempted to choose the colour based on what matches the fewest biomes rather than just going with green. Magenta or cyan would probabaly both give you better results than green.
Version 2.0.0 Mod moved to github - https://github.com/Lula-Mae/com.pa.lulamae.the-void-skybox/archive/master.zip Changed to .png from .papa file for the cubemaps Now takes advantage of the Skybox Select feature in game settings