To change the template in Joomla 4, follow these steps:

1. Log in to the Joomla Admin Panel:
– Open your web browser and enter the URL of your Joomla 4 website followed by “/administrator” (e.g., “www.example.com/administrator”).
– Enter your username and password to log in to the Joomla Admin Panel.

2. Access the Template Manager:
– In the Joomla Control Panel, click on the “Extensions” menu item and select “Templates” from the dropdown menu.
– Alternatively, you can navigate to “Extensions” and then click on the “Templates” icon.

3. Select a New Template:
– In the Template Manager, you’ll see a list of installed templates under the “Styles” tab.
– Locate the template you want to set as the default or active template.
– Click on the template name or the template’s preview image to select it.

4. Set the Template as Default:
– Once the template is selected, click on the star icon in the “Default” column to assign the selected template as the default template for your Joomla 4 site.
– The default template will be used to render the frontend of your website.

5. Save Changes:
– After setting the new template as the default, click the “Save” or “Save & Close” button in the Template Manager to save your changes.

6. View the Frontend:
– Open a new tab in your web browser and enter the URL of your Joomla 4 website to view the frontend.
– The template you selected should now be active and displayed on the frontend of your site.

Joomla allows you to have multiple templates installed, and you can switch between them at any time using the Template Manager. You can also assign different templates to different menu items or sections of your website for a more customised look and feel.

It’s important to note that changing the template might affect the appearance and functionality of your website. Ensure that the new template is compatible with Joomla 4 and that any customisations or extensions you have are compatible with the new template. Test the website thoroughly after changing the template to ensure everything functions as expected.