title: react-native trasparent overlay exposing some component
body: <p>how can I create a transparent overlay exposing some component like buttons, icons? So that it can be used as a tutorial screen.</p>
  
  <p>I want to achieve something like shown in the image.</p>
  
  <p><a href="https://i.stack.imgur.com/XZf1e.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/XZf1e.jpg" alt="demo tutorial screen"></a></p>