Settings
•High contrast keyboard: Adjust the size of the Samsung keyboard and change its colors to increase the contrast between the keys and the background.
•Highlight buttons: Show buttons with shaded backgrounds to make them stand out better against the wallpaper.
•Color inversion: Reverse the display of colors from white text on a black background to black text on a white background.
•Color correction: Adjust the color of the screen if you find it difficult to see some colors.
•Remove animations: Remove certain screen effects if you are sensitive to motion.
•Reduce transparency and blur: Reduce visual effects on dialogs and menus to make them easier to see.
•Extra dim: Dim the screen beyond the minimum brightness setting for more comfortable viewing. Tap for additional options.
Size and zoom
You can increase the size of supported screen elements and create shortcuts for accessibility features on your device.
◌From Settings, tap 
Accessibility > Visibility enhancements and tap an option:
