You make a terms list with the terms query loop builder and want to add the featured image of the latest post to the container background. In this tutorial, I shall show how you will fetch the featured image of the latest post of a term and add it to the container background.
Open the functions.php file of the Bricks child theme or you can put the code into the 3rd party plugin. I make a function get_term_post_featured_image_url (which is returning the image URL) and will use it inside the “echo” dynamic tag.
After adding the code, you will open your page on the builder editor and select your terms loop builder element(where you are making the terms list). Click on the Style -> Background section. Set the background image with the following dynamic tag: {echo:get_term_post_featured_image_url}