Improved spices icons, Use checkbox for active theme, couple minor fixes

![screenshot_area_2013-05-11_21 51 48](https://f.cloud.github.com/assets/262776/492411/9b7b9a22-baa6-11e2-9061-627d63f1469a.png)

![screenshot_area_2013-05-11_21 53 05](https://f.cloud.github.com/assets/262776/492412/c0871c2e-baa6-11e2-8200-6a59ae8edf5b.png)