Set image of normal style to that of default skin button image, image stretched

Hi,

I have imported the default skin into my project. I create a custom style and set the image for the normal of that style to the image of the default button style. I add a button to my scene, with size 120x120, the image shown is not the same on this new button as on a button from the default. It appears the image is getting re-sized. How do i stop the resizing from occurring.



Thanks for looking