title: Correct behaviour for tray icon click?
body: <p>When an application adds an icon to the system tray and minimises to it, there must be a way to restore it. However, when it comes to restoring the window I'm not sure what the 'correct' behaviour is for applications.</p>
  
  <p>Do I restore on a double click, on a single click, or not at all? What's the Windows standard?</p>