Topic: Templating/themes for site users
Are there any tools or solutions for allowing site users the ability to create their own custom page templates. For example, say I'm developing a multi-site blogging application. One database stores sites which has many accounts. Each account has their own blog at account1.blogapp.com, account2.blogapp.com, etc.
Each account/user essentially has a blog - which pulls its data from a multi-user db - which formats the data into various blog pages (home page, archives, article detail, etc). Is there a RoR way of allowing this sort of setup. To provide users a way of theming their site, without actually having access to the underlying RoR templates?