I'm working on a site and I want to give the user the option to switch themes. I've got a really full-featured child theme (built off Hybrid) that is the default and a very simple high visibility theme (built off Skeleton). Problem is I'm having trouble calling up a child theme from the front-end.
Using various theme switcher plugins (Theme Switcher, Theme Switcher Reloaded, Theme Preview) all failed. When listing themes they don't list out the child themes. No problem, I thought, I'll just manually call the URL (ie: ?wptheme=child) but that doesn't work either.
Any ideas? What would be the cleanest way to run two themes for one set of content?