Settings
Display
You can configure the screen brightness, timeout delay, font size, and many other display settings.
Screen brightness
Adjust the screen brightness according to lighting conditions or personal preference.
1.From Settings, tap 
Display.
2.Customize options under Brightness:
•Drag the Brightness slider to set a custom brightness level.
•Tap Outdoor mode to increase the screen brightness for 15 minutes for greater visibility when outdoors.
TIP You can also adjust screen brightness from the Quick settings panel.
Blue light filter
The Blue light filter may help you sleep better and reduce eye strain. You can set a schedule to automatically turn this feature on and off.
◌From Settings, tap 
Display > Blue light filter, and then choose one of the following options:
•Drag the Opacity slider to set the opacity of the filter.
•Tap Turn on now to enable this feature.
•Tap Turn on as scheduled to set a schedule for when Blue light filter should be enabled. You can choose Sunset to sunrise or Custom schedule.
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