Theme Switcher Rules

Theme Switcher module allows you to create theme-switching rules which allow automatic selection of a theme based on Drupal 8 Conditions system. Because of this it can also be easily extended to support additional custom conditions exposed by other modules. In Drupal 8 conditions are no longer defined through a hook and they are plugins now.

With this module you can apply a specific theme to a unique node, use different themes based on the page language, use contrib conditions like a domain to apply one theme or another. The best of all is that you can do al of the above at once!

Requirements

The module require PHP >=7.1 and Drupal 8.5 or higher.

Installation

Install as you would normally install a contributed Drupal module.

Alternatives

• https://www.drupal.org/project/theme_flip is a very nice alternative for previewing different themes without switching the default theme
• https://www.drupal.org/project/theme_change is another lightweight alternative