In this section of the site management page, you can manage the themes that are used in your installation. You can set default themes, disable themes and add new themes.
The themes listed here, by theme ID, are the ones used when creating a new default project (for XOT, Bootstrap and Decision Tree). It is possible to enter a different default theme here. That means that when an author starts an empty project, it automatically gets the theme indicated here. This can be your own institutional theme, for example, if you have one. If this value is updated, it does not affect projects that have already been created.
If you have developed a theme yourself, you can upload and install it here. The theme should consist of a zip file with one folder in it. The theme ID is extracted from the .info file contained within the folder.
Here you will find the themes that are included in the installation, both those included with Xerte and those added manually by Xerte administrators. The themes are arranged by type of template; XOT, Bootstrap and Decision Tree. They can be enabled (to be visible to project authors) or disabled (so they are not available to project authors).
Disabling a theme that has been previously used has no impact on those existing projects. However, if you edit these projects, you will be able to select a different theme.