You can edit colors of your app by logging into your Control Panel, selecting your app, then click the “Colors” tab.
You should note the settings before you make a change because you can’t reset to the previous settings.
Simply Click the box of the color section you want to change. The changes you make will be reflected in the app simulator on the right-hand-side of the screen.
IMPORTANT NOTE: When you make a change to your app’s Home Page in the Control Panel, your live app will be updated.