title: How can I display the spinning NSProgressIndicator in a different color?
body: <p>I am using a "spinner" NSProgressIndicator in my cocoa app:</p>
  
  <p><a href="https://i.stack.imgur.com/NTzoW.png" rel="noreferrer"><img src="https://i.stack.imgur.com/NTzoW.png" alt="spinner image"></a>
  </p>
  
  <p>I would like to display it in a different color so that it will show up well on a dark background:</p>
  
  <p><a href="https://i.stack.imgur.com/eytEK.png" rel="noreferrer"><img src="https://i.stack.imgur.com/eytEK.png" alt="inverted spinner image"></a>
  </p>
  
  <p>How would I go about doing this? My last resort would be to write my own custom NSView subclass that renders a custom animation, but I'm not even sure where to start on that front. Any help is appreciated.</p>