How to change background graphic/theme in splitview on ipad?

I would to get help on changing template/graphic of my ipad app to something similar like this one below. Please give me advices how to get this done. Thank you very much. enter image description here

And this is what I have right now. enter image description here

Solution

While the more graphic view looks like a SplitView I think it actually is a master view with graphic and two sub views, one containing a toolbar. Both have headers with a graphic background.