In “Colors” tab you can edit each of the colors to your liking. Depending on whether it is an App with only one content (Single) or an App with several contents (Kiosk), the colors you can customize will be different.
In 480interactive you can find an outline that will point which color are you customizing. On this way, you will know at all times what color you are changing.
Remember that, to apply the changes once you have customized the App to your liking, you must click on “Export App”.