I am having an issue about buttons in silverlight on windows phone 7. My button has a background image, and as I press it, it goes white like all the buttons in wp7 by default. What I want it to do, is to change its background image to different one. I found topic that describes something quite similar, but regarding the button color Windows Phone 7 (WP7) Change a button's background color on click.
Problem is that whenever I adjust any of the basic styles (Pressed, Disabled etc), I can only change everything besides the background image, because when I change it for one style, it stays changed for all the rest of them.
How can I make button change its background image while going into Pressed state? And why cant I do it the way the above link says?