Hello everyone!

I'm fully embracing the genre of 'Dark Fantasy' nowadays (think Dark Souls, Witcher, Bloodborne, etc.) and I'm looking for a shader that'll fit that genre. However, all of the shaders I've found so far either don't change the saturation, or if anything, increase it.

Maybe I've looked in the wrong places, but my question is this: does anyone know of a shader that decreases saturation (slightly)?