title: Create a colored bubble/circle programmatically in ObjectiveC and Cocoa
body: <p>Can anyone guide me in the correct way to build a colored bubble/circle programmatically?</p>
  
  <p>I can't use images as I need it to be able to be any color depending on user interaction.</p>
  
  <p>My thought was maybe to make a white circle image and then overlay a color on top of it.
  However I am not sure if this would work, or how to really go about it.</p>
  
  <p>If someone could point me the right direction I would appreciate it.</p>