No colour palette, really. The game uses black, white, a primary, secondary and darkened secondary all derived from mathematical relationships around the HSV circle. Basically pick a direction on the colour wheel and then look opposite (for the secondary) and then a darker and slightly cooler or darker warmer for the last colour. Hope that helps!
ALSO can I ask what resolution you were working at? I'm trying to do simple stuff so I can learn, I wanted to practice some of the technique you shared(Mostly just eyeballing it because I'm not some genius programmer who can do this algorithmically) but I don't know what size to work at as a newbie. I usually can do 8x8, 16x16, and at most 24x24
posted earlier, accidentally replied to myself though
That looks awesome ^-^ I'll definitely have to try it : 3
Thanks for being responsive. Sorry to bug you haha. I adore Moonring and learning about game dev sometimes means asking the people who make things haha. I presume you coded the hue shifting instead of doing all this by hand, which might be why I get slightly different results.