System Preferences > Accessibility > Display > Use Grayscale
(Other suggested features: Increase contrast, Differentiate without color)
Install NegativeScreen and choose Grayscale theme
From Force Android to display in grayscale:
Android 5.0 Lollipop provides this feature by default:
- Enable Developer mode (by tapping build number within Settings > About phone multiple times)
- Go to Developer Options and turn it on.
- Under Hardware accelerated rendering you will see option called
Simulate color space
, click it and set it toMonochromacy
.
(Worked on ASUS Zenfone 3 Max)
Settings > General > Accessibility > Display Accommodations > Color Filters
To enable accessibility shortcut (press home button for three times to toggle):
Settings > General > Accessibility > Accessibility Shortcut > Color Filters
Source: Change Your Screen to Grayscale to Combat Phone Addiction
Hi, came from Google for solution to enable grayscale for Android. Thanks!
My two cents: you don't need to install anything on Windows 10. There is an option "Turn color filters on and of" (which can be found by typing this name in Windows' search bar)