jasonlong/geo_pattern — pull request #3 by jasonlong (2014-02-03 20:57:06+00:00)
Title: New pattern: overlapping rings

Looks like so:

![screen shot 2014-02-03 at 3 53 42 pm](https://f.cloud.github.com/assets/6104/2069842/b5bbae80-8d15-11e3-8ae0-035a007d7667.png)