title: Creating transparent background in WPF
body: <p>I have a button with a backgroun image of color white. My button is sitting on the toolbar which has a bacground color of Blue. When the button is sitting on the toolbar, the button looks white, however I want it to look like blue as the the background color of toolbar is Blue.</p>
  
  <p>How should I achieve this in WPF.. Please let me know. </p>