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With this Template Chooser module, users can change the template in the frontend. In the backend you can select which templates you want to show in the frontend and rename the templates if you want.
The zip-file contains a plugin and a module. Both are needed to make the Template Chooser work.
Installation instructions can be found here.
The Change Log can be found here.
If you use Template Chooser, please post a rating and a review at the Joomla! Extensions Directory.