Set of ominous, plain texture, heavily stylized eyes for when you need that ghastly look.
They will dye with your iris color and allow for mixing Diffuse color (upped to a value of 2.0 by default) and Emissive color material parameters, while also allowing the usual eye customizations via other settings with limbals or sphere maps, or shaders like Aurora.
Single material redirected for every playable character face, no toggles or options. Use collections, make a copy of the material to edit, repackage to your liking.