You have the pictures that you want to use for new icons saved on your device. Once you're ready: Create a new shortcut. William Antonelli/Insider 2. Tap "Add Action." 3. In the menu that opens, search for "Open app" and select it when it appears under "Actions." You'll be making a shortcut that opens an app. William Antonelli/Insider 4. Tap the "Choose" placeholder and select the app you want to make a new icon for. You'll want to select the app whose icon you want to change. William Antonelli/Insider 5. Tap the three dots in the top-right corner to open an options menu.