How To Change App Icons. The second option you have is to use a launcher which allows you many more options to customize your phone’s home screen. Inside your app's assets > res directory, create a new directory called drawable.
First, download an icon you want to use and then open the folder with the icns icons. The list of all apps on your phone will open. Then choose desktop icon settings.
Open shortcuts on your iphone (you can search in the app library).
On the other hand, the decorate option lets you edit the current icon of the app by changing the contrast, brightness, hue, saturation and more. In the desktop icon settings window, select the desktop icon you want to change and click change icon. There are a wide variety of launchers that each work somewhat differently. Then, open the shortcuts app.
