My desktop turned blue (no more mountains)

[Snagg]

The actual solution to the "missing mountains" was to reinstall:

@Snagg

sudo apt update
sudo apt install --reinstall gdm3 zorin-os-desktop gnome-shell ubuntu-session
sudo reboot

This gets the original look of Zorin back, but it breaks SikuliX.

There does not appear to be a solution that lets you keep the original look and run an app like SikuliX which requires looking at the screen programatically.

Now that I know more about what's happening, I'd say a technical thread, maybe in GitHub is the best place to talk about why the "remember this decision" isn't working with SikuliX.