Each panel of the status bar can be turned on or off and configured
with an icon or no icon.
- Loops every 2 seconds
- Reports on:
- CPU usage
- Memory usage
- Backlight brightness
- Volume (requires amixer from alsa-utils)
- Icon changes when volume is below 50%, at or above 50%, or muted
- Battery percentage for each batter
- Icon changes from batter to plug when on AC power
- Date and time
