A monochrome display on an Android device indicates that a grayscale setting has been enabled. This setting alters the color palette, removing hues and displaying everything in shades of gray, from white to black. An example of this is when the user interface, including icons, text, and images, appears without any color, resembling an old black and white television.
The implementation of a grayscale mode is often intended as a digital wellbeing feature. It can reduce screen stimulation and make the device less appealing, thereby decreasing usage time and promoting healthier habits. Furthermore, this functionality has roots in accessibility options designed to assist users with color vision deficiencies.