title: How do I use / utilise the Assets.json file in the Themes directory?
body: <p>I am starting a new Theme from scratch and have a file called 'Assets.json' in the root directory.</p>
  
  <p>It maps the LESS file from the 'Assets' directory to a CSS file in the 'Styles' directory - great.</p>
  
  <p>Can anyone point me in the right direction as to how I can make use of this, as it's exactly what I want but can't find any information on how to use it.</p>
  
  <p>Thanks!</p>