I am currently working on an app that worked fine until ios7 came along. The search bar used to be transparent and blended into the blue background of the navigation bar. Now that I am working in ios7, the nav bar is blue, however the search bar has a gray background to it. How do I make it blue or transparent?

Here is an image:

![enter image description here](https://i.stack.imgur.com/pfXZi.png)