backgroundPattern enum, optional, allowed values: 1, 2, 3, 4, 5, 6, 7, 8, 9
The background pattern. Possible options:

1. First

2. Second

3. Third

4. Fourth

5. Birthdays Balloons

6. Birthdays Wrapping Paper

 7.  Christmas Snowman

8.  Christmas Light Bulb

9. Christmas Fireworks