Please be specific 🙂
Where do you want a background image, the whole browser, the site wrapper, other???
With the Plus plugins, Background images can be set in Main options > Wrapping Areas > Background images section
or customize in WHAT mode > Images > Background mages for areas
@weaver, I don’t see the “Background Images for areas” of the Plus plugin in the Customizer in WHERE mode under wrapping areas where I would expect it to be. Is that an error, or has it been moved somewhere else.