title: WPF: Styling radio buttons into a square
body: <p>I have a WPF application where I need the user to pick one and only one corner of an onscreen box.</p>
  
  <p><a href="https://i.stack.imgur.com/Ra6yc.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Ra6yc.png" alt="Sample box with lower left corner selected"></a></p>
  
  <p>It makes sense to me that the type of button would be a radio button. Exactly one corner can be selected at a time.</p>
  
  <p>But, Radio buttons are naturally round in Windows and WPF.  But WPF allows someone to restyle the UI elements, if they understand how.</p>
  
  <p>Can someone show me how this could be restyled. I would like to see it done in a way that would not affect the look of the other radio buttons in the same window.</p>