Archive Template Help!

I’m trying to figure out where to add a background image behind the navigation and Archive Page Title (to match the rest of my site) on the Rentals page, but the archive-listing.php file referenced in this documentation https://codex.easypropertylistings.com.au/article/121-how-to-create-your-own-custom-theme-templates-or-modify-existing-ones-using-the-theme-template-loader does not at all match the template referred to here: https://codex.easypropertylistings.com.au/article/187-template-archive-listing-default

https://github.com/easypropertylistings/Easy-Property-Listings/blob/master/lib/templates/themes/default/archive-listing.php

I’m very confused; please help! ??