In this tutorial you will learn how to:
• Access display settings
• Adjust screen brightness
• Edit display appearance
• Turn Night Shift on or off
• Edit Auto-Lock settings
• Change text size
1. From the home screen, select the  Settings app.
2. Scroll to and select Display & Brightness.
From the Display & Brightness Screen, select and drag the Brightness slider to the desired brightness.
Note: Alternately, to quickly change screen brightness, swipe up from the bottom of the screen to access the Control Center, then select and drag the Brightness bar up or down to the desired brightness.Â
Dark mode makes every element on the the screen easier on your eyes and is seamlessly integrated throughout the system. From the Display & Brightness Screen, select Dark.
To automatically transition iPhone appearance between light and dark based on time preference, select the  Automatic switch. Select Options then select Sunset to Sunrise or Custom Schedule and edit settings as desired.
From the Display & Brightness screen, select Night Shift then edit settings as desired.
Note: Night Shift uses the clock and geolocation of your iOS device to determine when it’s sunset in your location. Then it automatically shifts the colors of your display to warmer colors. In the morning, it returns the display to its regular settings.
From the Display & Brightness screen, select Auto-Lock then select the desired Auto-Lock time.
Note: When in Low Power Mode, auto-lock is restricted to 30 seconds.
From the Display & Brightness screen, scroll to and select Text Size then select and drag the Text Size slider.