title: Grabbing each frame of an HTML5 canvas
body: <p>These palette cycle images are breathtaking: <a href="http://www.effectgames.com/demos/canvascycle/?sound=0" rel="noreferrer">http://www.effectgames.com/demos/canvascycle/?sound=0</a></p>
  
  <p>I'd like to make some (or all) of these into desktop backgrounds.</p>
  
  <p>I could use an animated gif version, but I have no idea how to get that from the canvas "animation".  Is there anything available yet that can do something along these lines (speficially for that link and generally speaking).</p>