title: Transparent PageRoute in Flutter for displaying a (semi-) transparent page
body: <p>Would it be possible to have a page route with a transparent background so I can show a (semi-)transparent page on top of an existing page?</p>
  
  <p><a href="https://i.stack.imgur.com/Mu2NE.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/Mu2NE.jpg" alt="semi-transparent screen transition"></a></p>