Thanks for checking out the project! :D
It's open source on github:
<a href="https://github.com/Anemy/concentric" rel="nofollow">https://github.com/Anemy/concentric</a><p>I've posted a couple of my favorites on dribbble: <a href="https://dribbble.com/Scotsley" rel="nofollow">https://dribbble.com/Scotsley</a><p>AMA! Share any cool ones you generate!