| Platform | Since |
|---|---|
| Android | 0.4 |
| iPhone | 0.4 |
| iPad | 0.4 |
| Mobile Web | 1.8 |
Local path or URL to an image file for setting a background for the master view (when there are no windows or other top-level controls displayed).
The default background image may also show through if you use semi-transparent windows.
