You don't have to copy the XML generated by shotwell to gnome-background-properties. You have to create a different XML (I named it wallpaper.xml) with this code that points to the XML from shotwell:
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE wallpapers SYSTEM "gnome-wp-list.dtd"> <wallpapers> <wallpaper deleted="false"> <name>Shotwell</name> <filename>/home/<user>/.local/share/shotwell/wallpaper/wallpaper.xml</filename> <options>zoom</options> </wallpaper> </wallpapers>
Now, if you go to the wallpapers settings you will se your slideshow there
You don't have to copy the XML generated by shotwell to gnome-backgroun d-properties. You have to create a different XML (I named it wallpaper.xml) with this code that points to the XML from shotwell:
<?xml version="1.0" encoding="UTF-8"?> wp-list. dtd"> Shotwell< /name> /home/< user>/. local/share/ shotwell/ wallpaper/ wallpaper. xml</filename> zoom</options>
<!DOCTYPE wallpapers SYSTEM "gnome-
<wallpapers>
<wallpaper deleted="false">
<name>
<filename>
<options>
</wallpaper>
</wallpapers>
Now, if you go to the wallpapers settings you will se your slideshow there