title: Sublime Text 3 side bar icons
body: <p>I've just installed ST3 on my High Sierra.</p>
  
  <p>I wish to know how to enable icons for file types in my sidebar. I'will be using ReactJS, React-Native, Relay, etc. files.</p>
  
  <p>Are those icons already included in ST3 ?</p>
  
  <p>If not, what is the recommended icon package, where to grab it and how to install ?</p>