title: WPF get the default TextBox mouse over color
body: <p>I would like to color a control in exactly the same color like is the default <code>TextBox</code>'s mouse over color (preferably theme-aware). e.g.</p>
  
  <pre><code>&lt;Rectangle Fill={x:Static WhatDoIPutHere}/&gt;
  </code></pre>
  
  <p>Under which key/resource can I access the color? In my current system it appears to be the <code>#ff7eb4ea</code> light blue, but none of the *Highlight*, *Control* or *Border* <a href="https://docs.microsoft.com/en-us/dotnet/api/system.windows.systemcolors?view=netframework-4.8" rel="nofollow noreferrer">System Colors</a> seems to be of that value.</p>