title: Can't change border color when mouse hover button
body: <p>I'm trying to change the default border color when mouse is over a button but I can't get it to work. I've thought this would work fine but apparently it doesn't:</p>
  <pre><code>&lt;Button&gt;
      &lt;Button.Resources&gt;
          &lt;Color x:Key=&quot;ControlMouseOverColor&quot;&gt;somecolor&lt;/Color&gt;
       &lt;/Button.Resources&gt;
  &lt;/Button&gt;
  </code></pre>
  <p>Is there any way to do this?</p>