title: Simple Captcha and make different colors
body: <p>I've just watched the link as <a href="http://simplecaptcha.sourceforge.net/" rel="nofollow">http://simplecaptcha.sourceforge.net/</a> and it gives demo of some images showing that captcha can be designed as a colored one so it can be not only black and white one. But for some reason I couldn't find any tutorials of how control SimpleCaptcha colors :( If you know some snippets or tutorials share them please.</p>
  
  <p>All useful comments are appreciated :)</p>