Okay, thank you
I'm not sure I understand your question. The base ramps and the potential replacements are all in the palettes folders. The clothing and hair all use the base ramps already. Use those as the reference point for swapping out the replacement ramps. There's a color ramps image in the supporting files folder that demonstrates how they work. If you're having trouble grasping the concept generally, I invite you to take a look at the customizer app. Change the color ramp of a layer and see how it affects the sprite.
If you're asking how to set them up to change in your game, that's not something I can do for you. You need to program that yourself. If you're using Godot, there's a plugin linked on this page to help (MSCA). If you're using another engine, you'll need to look up tutorials on palette swapping.