How to store "Auto Brightness" value into the variable
Action Type: Init Variable System Setting
Registry Category: System
Registry Name: screen_brightness_mode
Variable: global_brightness_mode
Variable that prefix with global_ will became permanent variable which stored data on disk and can be accessed from any flows.
In these example, we will use as global_brightness_mode.
Can be seen later at the menu "Manage > Global Variables".
The meaning of any registries:
http://developer.android.com/reference/android/provider/Settings.System.html