Problems

Why doesn’t it work well on Linux?

I’ve experimented a bit on Linux and searched for ways to put a window as a wallpaper, but at least with KDE Plasma none of them really worked.

This is because the desktop background and the desktop icons appear to be in the same windows. Hence, it seems to be impossible to put a window between them.

We change the property _NET_WM_WINDOW_TYPE of our window to _NET_WM_WINDOW_TYPE_DESKTOP which makes it appear as the desktop window. Sadly our window is still above the original desktop window and therefore covers all symbols and prevents you from interacting with your desktop.

Making sure our window is below the desktop seems hard and wouldn’t really help, because then the desktop window (which included the desktop background) would cover our window instead.

I need to experiment a bit more; maybe setting a transparent wallpaper could fix this.

What’s the problem on GNOME/Ubuntu?

The application uses an icon in the system tray which you can click to open or close the configuration window.

Ubuntu/GNOME does not support the system tray anymore.

There might be some plugins providing a system tray, but I haven’t tested them yet.