title: Need to flash the screen GREEN for 5 secs
body: <p>I have a particular requirement.</p>
  
  <pre><code>if(condition true){
      Flash the screen GREEN for 5 secs
  }else{
      Flash the screen RED for 5 secs
  }
  </code></pre>
  
  <p>Could anyone please help in this regard?</p>