title: Want to change gtkfilechooser
body: <p><img src="https://i.stack.imgur.com/Pms5L.jpg" alt=""></p>
  
  <p>I wish to change this popup for every program calling </p>
  
  <pre><code>public class OpenFileDialog : FileChooserDialog {
  </code></pre>
  
  <p>Ideally it would involve removing desktop and changing search etc. I was just hoping somebody knew where the underlying files are?</p>