Iphone App Icon Change. In your shortcuts app you should be able to find the shortcut you’ve created, tap the icon, and select choose photo. But there is a way to hide that app, so just start the jiggle mode and tap on that app to add it to the app library.
Open the shortcuts app on your iphone (it's already preinstalled). From this point you’ll be able to change your icon at will. Changing app icons with the shortcuts app.
Search for the app that you want to change the icon of and tap on its name.
Tap add to home screen and then click the picture of the app next to where it says new shortcut. Tap the placeholder app icon. The four options are as follows: Or, you may also search for ‘open app.‘ now, tap on choose and select the desired app whose home screen icon you wish to change.