2. Tap Blue light filter.
3. Tap On/Off to enable this feature.
When enabled, drag the Opacity slider to set the opacity of the filter.
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Set a schedule for when Blue light filter should be enabled. You can choose Turn on now,
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Sunset to sunrise, or Custom schedule.
Screen Mode
Choose a screen mode to match your type of viewing.
1. From home, tap Apps
2. Tap Screen mode.
Settings
Device Settings
> Settings
> Display
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