title: Android TV: How to customize left navigation panel of android TV using Leanbak?
body: <p>Currently I am working an android tv application project and my navigation panel is showing text and icon when it is in expanded mode like - </p>
  
  <p><a href="https://i.stack.imgur.com/gMjzk.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/gMjzk.jpg" alt="expanded"></a></p>
  
  <p>When navigation panel is collapsed it showing a vertical bar with just color and no icons or something is showing.</p>
  
  <p>But I am trying to achieve this kind of design when navigation panel is collapsed -</p>
  
  <p><a href="https://i.stack.imgur.com/y7qbf.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/y7qbf.jpg" alt="collapsed"></a></p>
  
  <p>Now my question is is this achievable using leanback and if possible how can I implement it?
  Any kind of hints, tips or reference will be helpful.
  Thanks in advance.</p>