It allows you to put your favorite color on your app icon.
Changing the Color of App Icon before iOS 14
– Open settings.– Tap on the General option available on the list of options.– Go to Accessibility.– In the Accessibility menu, you can toggle on/off the options for Inverted Colors or Grayscale.
How to Change/Customize your App Icons on iOS 14
You can customize or modify your app icon, you need to make sure you have revised your device to at least iOS 14 or iPadOS 14.
Third-Party Method to change the color of your Apps iOS 14