Setting the background is not something I do very often but I think I used to do it by left clicking on the desktop.

Then sometime in the last month or so, perhaps after an update (this is a Fedora 23 system), I noticed the backgrounds I'd set (there are three screens) were gone and all replaced with the breezy theme one. I wasn't bothered much at the time and forgot about it.

However, I just installed F23 fresh on another system and found the same issue -- theme based backgrounds and no way to change them. The only menu accessible on the desktop is this right click one:



And the main "System Settings" doesn't seem to have anything about this.

click "Folder View Settings"

could be prior you were using the Desktop layout and now the Folder View?

google01103 wrote:could be prior you were using the Desktop layout and now the Folder View?

Yep, had not noticed this distinction!