Just a thought, which you may/may not agree with:
The clouds on these lovely new planets move far too quickly for my taste, and look a little odd.
After changing a few numbers in planets.json and I'm much happier with the result.
I swapped the rotation direction as well as I think it looks better.
Spoiler
cloudRotation values
US_gas_giant: -7
US_acid: -4
US_acidRain: -4
US_acidWind: -6
US_alkali: -5
US_auric: -6
US_auricCloudy: -6
US_red: -5
US_redWind: -7
US_green: -5
US_blue: -5
US_purple: -6
US_water: -5
US_arid: -5
US_dust: -5
subjective.txt