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A helper letting you control your display brightness. Can be set to persist across reboots. Supports hover scrolling and custom keybindings for changing brightness.
This is an indicator showing the current GPS status. You can have it display the number of currently visible satellites, the HDOP and the GDOP. You can also use it to enable and disable your GPS by executing a command of your choosing. The refresh interval can be adjusted.
Add a switch allowing you to select whether closing the laptop lid should trigger your chosen action or just blank the screen. The default Gnome Shell action is to suspend when the lid is closed. (You can use Gnome-Tweak-Tool to customise this behaviour).