What can I do to select "tile" for my Desktop Background
For Changing the desktop background, I have selected a directory, and checked that pictures are shown in random order. This works.
However, I would also like to use "tile" for showing the pictures. I can choose "Fill Screen", "Fit to Screen", "Stretch to fill screen", and "Centre", but "Tile" is greyed out.
What can I do to enable this option?
iMac Line (2012 and Later)