title: CSS change color of image
body: <p>I have a few icon images which include only a white outline and a transparent background.
  How can I use CSS (filters, etc) to display those icons in any color I choose?
  I tried a combination of a few CSS filters (hue-rotate, brightness, etc) but with limited success... I guess my knowledge in color theory is very limited.</p>
  
  <p>Thanks!</p>