Google results in custom look

Hi, I am working on a app and I want to have the custom search for example: 'apple'

In my app there is a webview that shows the image results for 'apple' in google search. But I don't want it to look like its a google search, how can I change the look?

For example I found this app here: http://itunes.apple.com/gb/app/100000000-images-google-image/id375582364?mt=8

It searches google for images and returns them with his own custom look and feel so it doesn't look like google.

Would anyone know how to do this?

Thanks