Guide

1. First, access the 'System' dropdown menu in your administrator dashboard to find template configuration options.

2. Click on 'Site Template Styles' to view and manage all installed templates, including Cassiopeia.

3. Here, you'll see that Cassiopeia is listed as the default template.

4. Set another template by clicking the star icon under 'Default'.

5. Locate Cassiopeia in the list, and select the checkbox next to it.

6. Click the 'Delete' button in the toolbar to remove Cassiopeia from your system.