New: in the mod settings select jpg, automatic and the mod wil adjust the quality for you, so you don't have to worry about the file size for posting on RimWorld.gallery anymore. It adjusts every time a render is made so it can take a while to get to the right quality setting. This can be sped up by manually rendering. Leave it at 30MB, RimWorld.gallery doesn't mind if you go over a bit.

To install, on the github site click the green code button and select download zip, unzip into your mod folder. Let me know how it works for you. Recommendations welcome, no promises though. Thanks for testing!