Enable the theme picker

The theme picker adds a field to the system menu that allows the user to quickly switch between CSS themes during the current browser session.

Before you begin

Role required: admin

About this task

You can enable the theme picker by activating the ui_theme_changer UI macro.


  1. Navigate to System UI > UI Macros.
  2. Locate the ui_theme_changer UI macro.
  3. Set the Active field to true.