The A4Joomla template is a great option for those looking for a free Joomla template. However, there are a few parameters you need to set up after installation and selecting it as the default template.

The template uses a 12-column grid, so you will need to adjust the Layout/Right column width and Layout/Left column width to fit your needs. It's important to test the site's appearance as you adjust these settings since the template is responsive and the appearance will change based on the browser or display size.

To display the social and search icons, you need to enter the corresponding URL parameters. For the search icon to work, you'll need to create a new hidden menu with no published modules, then create a new search menu item and copy its alias to the end of the site URL to see the search page.

The template parameters cover text logo settings, fullscreen header, layout, typography, social icons, and top menu settings. It's important to note that this free version does not support a dropdown menu.

If you want a side menu similar to the one on the left, you can set the "Module class suffix" to "_menu" and remove everything from the "Menu class suffix".

Overall, the A4Joomla template is a good option for those looking for a free Joomla template, but make sure to adjust the parameters to fit your needs and test the site's appearance as you go.