LG G Vista - Manual (Page 182)

180 Settings
Screen lock sound: Checkmark to play a sound when you lock and
unlock the screen.
Sound when roaming: Checkmark to play a sound when roaming.
Emergency tone: Sets the behavior when an emergency call is
placed. Choose from Off, Alert, and Vibrate.
Message/call voice notifications: Tap the switch to toggle it On or Off.
On allows your phone to automatically read your incoming calls and/or
messages out loud. Checkmark Calls for caller information, Messages for
sender information, and Read messages for message content. You can
also set the Voice notifications language.
Display
SCREEN
Brightness: Sets the brightness of the screen. You can choose automatic
adjustment, or you can manually set the brightness percentage. 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.