Thank you Roman – that will work.
Although it’s my hope that in future versions of the theme you will implement something like Background Manager ‘that is integrated into the Alora theme ‘like you did with the different banner/slideshows.
As Background Manager is now no longer under further development, maybe you should see if you can pick it up from him? It’s just a thought.
Thanks again for the assistance.
I still have to switch over to WP 2015 (theme) to set the background images; but at least now I can change the underlay color from the individual pages and the customizer page.
Many thanks for figuring this out for me.