title: Android Spinner change arrow color
body: <p>I have seen questions about this previously but none seem to work for me.
  I want to change the color of the material drop down, as seen <a href="http://postimg.org/image/h0wao6kb1/" rel="nofollow">here</a></p>
  
  <p>I want to make the arrow black.
  I have tried making a custom drawable and using that with dropDownSelector but it didn't show the arrow correctly. I have tried adding it as a style and it didn't work either.
  Any ideas would be great.
  Thanks</p>