Add more of the planet's properties to the dynamic file, for example colors for lighting, sky/cloud colors, wind speed, etc, allowing for greater randomization or at least a greater variety of colors without having to make a completely separate playfield for it. For example a way to add a possibility of a desert planet that could generate with blue, purple, red, orange, or yellow sky color instead of having only one fixed sky color for all versions of that planet. This should be optional and allow you to configure which colors it could be, so if you still want to use a static color you could.
I'm an advocate of RGN being introduced to it in D&D and especially (Mark W Millar) Traveller some half a centuary ago, but sometimes without proper categorising and very subtle differences in listing you can end up with conflicting extremes, we 'our small group' would often run two or three RGN's to get the answer, where certain numbers would exclude a certain part of another list (it could get complicated but it was exciting) but always looked at the science behind the question first, Eg: type of the star, solo*, the age of the star, distance the planet is from the star, type of planet, does it have natural sattelites (if so create 'base' those) then get to work on atmosphere and other interesting things where the lists would set the scenario. I understand that my thinking is perhaps far deeper than you are thinking, if only because of the scale Eleon use, but the principle is there. * the binaries and terneries are a headache for distance and stability, and also we in general kept most habitables in the main sequence as giants+ and dwarf stars presented their own problems for world generation I hope I haven't gone off topic, as post removal is soul destroying.
Yeah that's a bit beyond what I was suggesting. I'd be happy even with something like having up to 8 gradients that could be set for combinations of color for sky/lighting/clouds/etc. So it wouldn't necessarily be completely random but rather having up to 8 (or however many is possible) variants. Just some way of varying planet appearance without having to make a totally new planet template.