I'm just getting to know Xfce for the first time; I'm running it on Linux Mint.
I was trying to change the desktop background image (I right-clicked on the Desktop... selected "Desktop Settings"... and then the Desktop setting window appeared...)
On the "Background" tab, in the "Images" box, I saw a whole long list of beautiful photos to choose from, and I did manage to successfully change the background....
...but then I thought I'd try another one, so I tried to select one, but all of a sudden (actually, I don't recall exactly what I did at this point), the list was empty! Somehow, I'd accidentally deleted them all... I guess.... ??
GONE are all those beautiful color pictures of tropical beaches.... sunrises.... sunsets... and so on.
How can I get them back? Please remember that I'm a newbie to Linux, to Linux Mint, and to Xfce!
thanks for your help and have a great day.
What version of Xfce are you using?
In the Desktop Settings dialog, what do you have set for Image (Single Image, Image List, None)?