Glad you're enjoying the assets! So I don’t have any defined color pallet, but I could work on one to add to the packs in a future update. There is quite a lot of color variety, I choose the colors depending on the material, so most golden, stone and wooden objects share similar colors, but its usually dependent on the scene around it. But most of the colors I use have 4 diff shades starting from darkest to light, so I’d just use the color picker for the darkest shade and work your way to the lightest if you wanna alter them