title: PyQt5 on gnome has strange file dialogs
body: <p>I'm trying to switch from qt4 to qt5, but one of the issues I'm seeing is that the open/save file dialogs have gotten really ugly! Files and folders no longer have icons, the shortcuts in the sidebar are displayed incorrectly etc.</p>
  
  <p>Does anybody know why this is and how I can restore it?</p>
  
  <p>Thanks,
    Michael</p>
  
  <p><strong>Update:</strong></p>
  
  <p>I don't specify which dialogs to use, so I guess I get whatever the default is. This is an open file dialog in PyQt4:</p>
  
  <p><a href="https://i.stack.imgur.com/wc0z6.png" rel="nofollow"><img src="https://i.stack.imgur.com/wc0z6.png" alt="An open file dialog in PyQt4"></a></p>
  
  <p>And PyQt5:</p>
  
  <p><a href="https://i.stack.imgur.com/baoGf.png" rel="nofollow"><img src="https://i.stack.imgur.com/baoGf.png" alt="enter image description here"></a></p>
  
  <p>The system is Fedora 24, with Gnome 3.20.2</p>