Description:

This client for pbbuttonsd displays small GTK+ popup windows each time
a message from the daemon pbbuttonsd appeares. The following windows
could pop up:
- brightness level
The current display brightness level would be displayed.
- volume level
The current volume level would be displayed
- mute
The window shows if the speakers were muted.
- battery warning
This window shows that battery is running low and how long it would
last until shutdown.
- trackpad mode
This window shows the current trackpad mode.
- sleep warning
This window shows that the machine is going to enter sleep mode.
Usually at that time you could press any key or move the mouse to
prevent sleep mode.