Hi Folks,
I've spent at least a day trying to figure this out and have checked nearly every post in the forums here. I simply cannot see any way for the user to change their theme. They have no option whatsoever to change this.
I managed to change the users role (and subsequently experimented with the role manager). They could then change the site theme which affected everyone.
What I want is for the user to choose a theme. I've read the posts about keeping the admin/main theme consistent with this but it's almost as if I can't get past the first hurdle.
There is an option for the admin under Edit Blogs that says "Allowed Themes" and then says "Serialized Data".
Helpful comments appreciated.