Hello.
From the menu settings you have options for: Background image and Blackground Color which is a background color not an overlay for the background image. In summary you have 2 options, image or background color.
Now if you want to change the opacity or the color of the overlay of the background image of the titles you have to do it using CSS, to do this create the file /templates/ut_procar/css/custom.css and inside it paste the following code that you can change color or opacity to your liking.
Code:
.sp-page-title:before{background-color:rgba(2, 0, 9, 0.3) !important;}
In the custom.css file you can add all the CSS customizations you want, these are not lost in template updates.
