Changed bricks to octogons

I wasn't that excited about the bricks pattern when I made it and now I kinda hate it. I've decided to replace it with an octogons pattern.

With special Valentine's Day coloring:
![screen shot 2014-02-14 at 10 23 43 am](https://f.cloud.github.com/assets/6104/2172809/8c5a0772-9598-11e3-9b3e-b077ac30041a.png)