SCREEN
Brightness: Adjusts the brightness of the screen. For best battery performance, use the dimmest comfortable brightness.
Screen timeout: Sets the amount of time before the screen turns off due to inactivity.
Screen-off effect: Sets the effect seen when you turn off the screen. Choose from Retro TV, Black hole, and Fade out.
Auto-rotate screen: Checkmark to set the phone to automatically rotate the screen based on the phone orientation (portrait or landscape).
Daydream: Tap the Daydream switch to toggle it On or Off. On allows the set screensaver to be displayed when the phone is sleeping while docked and/or charging. Choose Clock or Google Photos.
FONT
Font type: Sets the type of font used for the phone and menus.
Font size: Sets the size of the font displayed in the phone and menus.
ADVANCED SETTINGS
Smart screen: Checkmark to keep the screen from timing-out when the phone detects your eyes looking at the screen.
Home touch buttons: Sets the Touch Keys displayed at the bottom of all of the screens. Set which ones are displayed, their position on the bar, and what they look like. Select Button combination, Color, Transparent background, and Hide Home touch buttons.
Notification light: Tap the switch to toggle it On or Off. On will activate the LED light for the notifications you checkmark.