LE version here

This will add FaceTints with no makeup for all humanoid vanilla NPCs. Children and beasts are not included. You can have loose files or a bsa version with an ESP or ESPFE.
The normal FaceTints are in normal Skyrim SE format 512 since it's only skintone, but the warpaint ones are in 1024, both formats are compressed with added mipmaps in BC7.

I've also added the edited tintmasks, so you can make your own FaceTints for other mods that are not covered by this one.
If you want Warpaint only, you'll need to install HQ Warpaint, I recommend Vanilla Warpaints Absolution or Painterly.
Use SSE CreationKit Fixes to make the FaceTints at least 1K (this is only recommended if using Warpaint, if it's only skintone, then 512 is fine)
You can also disable FaceGeom export to not destroy custom FaceGeoms

Install
Install with a mod manager (Recommended)
Take the content of the folders and paste it in your data folder

Uninstall
Uninstall with a mod manager (Recommended)

BSA version: Delete the esp and the bsa
Loose version: Go to textures\actors\character\facegendata\facetint and delete Skyrim.esm, Dawnguard.esm, Dragonborn.esm and Hearthfires.esm
If using NMM, you may have to reinstall all mods that use loose textures and edits vanilla NPCs.

Compatibility
You might not want to overwrite FaceTints from another NPC overhaul in case they change skintone which will create a neckseam. However, if they don't change skintone, then go ahead.

My Special Edition Mods
My Skyrim Mods

Credits
Thanks to DomainWolf for Vanilla Warpaints Absolution
Thanks to Nukem for SSE CreationKit Fixes
Thanks to Microsoft for Textconv