It might not be that worthy to write a Qt application for such a small feature, but why not?

<img src="https://github.com/Uyanide/backgrounds/blob/master/screenshots/desktop-alt.jpg?raw=true"/>

The config file should be placed in `~/.config/wallpaper_chooser/config.json`. See [config.example.json](https://github.com/Uyanide/Wallpaper_Chooser/blob/master/config.example.json) for specific entries.