title: PhpStorm : Darcula theme shows white background
body: <p>I'm not sure what has happened, but this morning when I opened PhpStorm the background of the editor is now white even though the selected theme is still Darcula - any idea? It was all good last night - but now it's all white.</p>
  
  <p><a href="https://i.stack.imgur.com/71hIq.png"><img src="https://i.stack.imgur.com/71hIq.png" alt="enter image description here"></a></p>