title: button on the NAV BAR is the wrong colour
body: <p>I have got a navigation bar with a controller. I want an 'hamburger' icon on the right bar button. </p>
  
  <p><img src="https://i.stack.imgur.com/HoMHP.png" alt="enter image description here"></p>
  
  <p>Its an PNG file. 
  When I add it on Interface builder its blue :(. 
  I have been messing with the Tint colour and that changes the whole image. So if I want it green i just change the Tint color. But I want the colour to come from the png and not from the tint. I have tried using clear tint colour and that just makes it disappear. Any ideas on this quick one ? </p>