title: Change color of the drop down arrow of Spinner in XML
body: <p>As I wrote in my question, I want to change the color of the drop down arrow (the default arrow, not a custom arrow or something like that) of a <code>Spinner</code> <strong>in XML</strong>,  but the problem is that I couldn't find anything to make reference to it from the <code>XML</code>.</p>
  
  <p>Is it possible? If yes, how can I change the color?</p>
  
  <p>Thanks in advance.</p>