This article will show you how to add a custom banner image to your app.
Important Note
Styling/banner images can also be applied at the Environment level.
Instructions
Navigate to Apps and click Manage on the applicable app
Select the Builder tab
Scroll down and click the Banner Image box
Choose an image from your computer
View your uploaded image
Click Save in the top right corner
Navigate back to the Apps page and click Open App
View the banner on your app