So I was working on my KDE Plasma desktop with a nice wallpaper I had chosen. However, when I started, I started using the "activities" feature and started regularly adding and removing activities I was faced with a problem: the new activities take the default Kubuntu wallpaper (at the time of writing this was Next) instead of my set wallpaper. I tried to follow the answer over here, but it didn't work, the background of new activities remained the same. In the process of modifying that file, I noticed something strange though: the wallpaper set there does not match the actual default wallpaper. Here is the file:
... [Wallpaper] defaultWallpaperTheme=Elarun # The actual default wallpaper is Next! defaultFileSuffix=.png defaultWidth=2560 defaultHeight=1600
I checked whether the Elarun theme (maybe) contains the Next wallpaper, and it doesn't
Any help is appreciated!
EDIT: The same happens when I connect an external screen and "extend" to it: it gets the default wallpaper.