Tap on the background button and a list of options should appear.
1. If you want to add a customize background, tap on “Add New.” You can draw your own background.
2. By tapping on “Library” you can import images from your device album to be used as backgrounds.
3. Tap on “Color” to fill in your background with the color you select. You can also use eyedropper to select the color. Right-click to quit eyedropper.
4. You can choose your customized background or a default one.