title: How to set the label of a layout programmatically?
body: <p>Is it possible to set a label of a class/screen/layout programmatically? I am retrieving a short string e.g. "Today is Sunday" from a webpage and I would like to set that string as the title/label of the screen.</p>
  
  <p>What I meant for label/title: The grey box at the top of the screen which can be set manually in the manifest file. </p>
  
  <p><img src="https://i.stack.imgur.com/RHHiC.jpg" alt="label"></p>