To make your book more attractive and lively, you can apply animated background which called "Scene" in the flip program. There are many pre-designed scenes for you to choose and use directly, such as Autumn Leaves, Beach Beauty, Desert, Moon, Underwater World, Grassland, Snow, Clouds, etc.
Just double-click to apply the scenes, or you can set your own style scene by setting "SWF" format background image in "Design Setting" part.
Besides, you can download online scenes from the library and install them for direct use.
What's more, you can click "Add New" to select a SWF file as the scene.