Chameleon IS a PP effect, that’s how it works 
For example, if we want ‘drug’, for instance. I put a PP volume in the level, and assign this material
then I get
Sometimes, you’ll have to look in the chameleon BP, to see what it’s doing to the material instance
But, you can make them standalone in this way.
Mind you, if you’re packaging for a phone, I’d do something like this. But if you’re packaging for desktop, I wouldn’t bother. If you package your game and then take a look in the PAK file, 99% of it will be textures. That’s your main problem, I would say… 