I actually didn't know these were being referenced by other models, very cool! Nice to know these things are being used after all.
I could look to do a pack of them at some point but currently I don't have explicit permission from Ren to release things in that format since they are a mod of a paid texture set so for now I shall continue to pack things as they are. I'm not too bothered about it as the only bloat in my vars is the textures, the rest is the model morphs and a scene/appearance presets which are tiny in comparison so it make little sense to split the morphs and scene just for these textures.
If I did something like this then I would look to compile all the makeup textures across all my models which would end up with having to update a few models to accommodate and speak to Ren to clear releasing in this format. Lots of boring admin when I could be doing fun stuff.
I actually did a pack of makeup textures previously for Ren's Luci -
https://hub.virtamate.com/resources/renvr-luci-makeup-textures.4349/ which didn't get any traction, it has considerably less downloads than the model I made the pack for
https://hub.virtamate.com/resources/yasmin.4357/ I guess people skipped the makeup when getting the model to save hard disk space since they weren't useful. I had planned to do sets for the other texture sets but got no feedback on which texture sets and looks the community would want and abandoned the project since it appeared they were not being used and it takes a good deal of time to make these sets.
Lashes is actually something that's been on my radar for a while and I've been painting some more recently, I'll look in to getting a pack out when I have some good ones that work well in vam as lash textures are basically non existent which is surprising considering how very quick easy it is to make them if you have a tablet and pen and photoshop.
As for colour correct this release predates its availability as a var on the hub as it has ambiguous origins so it has only recently been added by TiSeb and the last update on this look is July 2021.
I'll look into using it as a dependency if I get time but it will probably be the next time I give them a makeover and update but I'm deep into other stuff right now so cant say when that might be.