hey so, for some reason skin color materials won't work for me idk why.. i used v0 skin variant i tried setting each shader's replace color node range to 0.01 and somehow it worked...
Viewing post in Mana Seed Shaders for Unity (Character Edition) comments
So I just tried replicating your scenario using Unity 2022.3.62f1 and got this result:

I did have to change the range value from 0 to 0.01 to get this result but so did you, so I am not sure why you are experiencing different results. I'm also not sure what you're trying to illustrate with the color picker because the cross section isn't that of the character, all of those color values are off. But the color values in the material look correct and the other settings all appear to be valid as well. It's a mystery! For giggles, what would happen if you start a new project, import only that 1 spritesheet, slice it, import my shaders and then create a gameobject using this sprite and my material. Does it work then? You are using URP right?
thank you for the response!
yeah, i'm using urp, unity version 6000.0.44f1. all my materials use sprite lit shaders. my lighting setup is a bit custom (i wrote it myself), but i don't think that should affect pixel replacement through shaders. also i should mention that i use volume
i tested it again in a fresh urp project with the same unity version — results r the same. the skin materials don’t work unless i set the range in the shader to 0.01. even then, some materials still feel like they're giving the wrong skin tone tho im not sure. and if i try values like 0.1 or anything smaller than 0.01 (like 0.001), it starts behaving really weird.
i’m not super deep into shader graph, but i’m guessing that range acts like a kind of threshold for color matching? either way, it’s inconsistent right now.
i actually dk what causes this strange behavior but i was planning to integrate your awesome assets (i also bought the eyes shaders both character and farm) so it better to work as intended without user modifications right