LG 24BL650C Owner's Manual page 16

Game Adjust
16
Black Stabilizer
Cross Hair
You can control the black contrast to have better visibility in dark scenes.
Increasing the Black Stabilizer value brightens the low gray level area on the screen. (You can easily distinguish objects on dark
game screens.)
Reducing the Black Stabilizer value darkens the low gray level area and increases the dynamic contrast on the screen.
Cross Hair provides a mark on the center of the screen for First Person Shooter (FPS) games. Users can select the cross hair that fits
their gaming environment among four different cross hairs.
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When the monitor is off or enters energy saving mode, the Cross Hair feature is automatically turned Off.