great plugin and since you support WordPress (MU) Multisite it's very close to my needs. Like many others i would love to give my subsite admins access to their style.css and only to "their" style.css.
I handled to separate themes and styles for subsite through creating child themes for my subsites. I do this by hand during the subsite installation, which is fine for me.
I could fiddle around with your code and make it work, but would like to have it in a standard update proof and well supported plugin like yours.
Could yopu please think about it and give me an answer?