title: Provide visual feedback to user of application
body: <p>I'm making an app that contains a Qlistwidget. The user can double-click an entry in the list, or press the Enter key when an item has already been selected. When the user does either of those things, a function is run that does stuff, it doesn't really matter what.</p>
  <p>I would like to provide visual feedback to the user that the expected action has indeed been carried out, but as simply as possible. Now, I'm not a UI/UX person, but the best way I can think of to intuitively show the user that the action has happened is to make the <em>item selection shadow</em> blink/flash.</p>
  <p>I don't want to display a text message as that would take up space in the app and I'm specifically designing it to take up as little screen real-estate as possible.</p>
  <p>Is this possible? If not, is there some other way I haven't thought of that would be just as good.</p>
  <p>I'm using PyQt5 and developing on Windows.</p>
  <p>I've looked through PyQt documentation and Googled it but can't find anything.</p>