Samsung Galaxy S7 Edge: How to Enable Grayscale Mode in Android 6.0.1 Marshmallow

Grayscale is one of accessibility features in Samsung Galaxy S7 Edge that can be used to turn everything on your phone's screen to black and white. Using this feature can help you save more battery power, read what's on the screen with more easily when you are in a dark/low-light environment or have certain vision difficulty. As a note, this feature effects the screen only, in other words, all photos, videos, and screenshots taken while the grayscale mode is enabled will be saved in full-color.

How to enable the grayscale mode?
As the example, we'll do so by using two different methods: from the settings menu and from the direct access menu.

Method #1: From the settings menu

1. On any screen, swipe down the top of the screen to open up the notification panel and then tap to go to the settings menu.
   
   
2. Scroll down the screen to find Accessibility and then tap it.
   
   
3. Tap Vision.
   
   
4. Scroll the screen to the very bottom and then slide the ON/OFF switch next to Grayscale to the right to enable the grayscale mode and turn everything shown in the screen to black and white.
   
   

Method #2: From the direct access menu
If you have enabled the direct access feature and selected Grayscale, you can use the following steps to quickly enable the grayscale mode from the direct access menu:

1. On any screen, press the Home key three times quickly to open up the direct access menu and then tap Grayscale.
   
   
2. The grayscale mode is enabled and everything shown in the screen will be turned to black and white.