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After searching for hours and hours I hope that I am allowed to ask for help here. I installed the Futurio Theme and began to customize it (without Elementor). Now I want to set different background pictures behind the titles on the different pages that my wp site has. But I don’t find any customizing function to do such a simple thing. Also the documentation doesn’t explain it. Can anybody show me the way? It is not the header image, nor the background image. It is the gray background behind the title(s): https://futuriowp.com/docs/futurio/

I could change it for all pages by CSS, but then it is only the same picture on all pages. So there should be a solution in WP.

The page I need help with: [log in to see the link]