So I have been looking for something that allows me to get an array of themes that are network enabled (set in the Network Admin > Themes)
There is the field called "allowedthemes" in the wp_options table however, this function is slightly different. It only contains themes that are enabled for that given networked blog as oppose to a global enable... if that makes sense? So it's scope is limited to one blog ID instead of all blogs (this info is set in the Network Admin > Sites > (clicking edit button of desired blog) > Themes).
Anyways, if anyone has any solutions it would be much appreciated :) Thanks!