Tip: To quickly change screen brightness

How many people appreciate it when their Samsung S2 Galaxy 

automatically adjusts the screen brightness to the circumstances, it

can also be very nice to do it by hand.
To save yourself a lot of hassle with the settings,
Samsung has transformed the Taskbar at the top into brightness control.

Sets, if necessary, first automatic adjustment of brightness from

(Settings -> Display -> Brightness -> Brightness automatically

"uncheck"). Now you can adjust at any time the brightness of the
screen by putting your finger on the taskbar (the bar at the top of

your screen, where time, battery, etc. are displayed). But instead of

dragging it down, to view your notifications, move your finger horizontally back
and fort. Left is darker, right is brighter. Simple.