title: Use custom icons with tabs in ionic2
body: <p>I need to use customs icons with tabs in ionic 2.</p>
  
  <p>Moreover I need to change the title color and icon, if the tab is selected.</p>
  
  <p>Example:</p>
  
  <p><a href="https://i.stack.imgur.com/7FP0m.png" rel="noreferrer">ionic Tabs</a></p>