Use an increment (default to 2) to increment or decrement the brightness
of the screen.
Respectively set the max, min or half value of the brightness of the screen.
Renamed the script inc.sh (resp. dec.sh) to inc-brightness.sh (dec-brightness.sh)
Activate/Deactivate the wifi.
Oops, mixed up the scripts.
Be certain that the wifi is off then launch a new one.
relaunch panel