title: WPF button display only icon
body: <p>I have a wpf application that looks like as follow:
  <a href="https://i.stack.imgur.com/ysSZJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ysSZJ.png" alt="enter image description here"></a></p>
  
  <p>How can I customize button, that should show only the image without button on the background(hide grey rectangle)?</p>