Fix image URLs for "white" chrome style.

Gross :thumbsdown: 

![screen shot 2014-06-16 at 3 19 56 pm](https://cloud.githubusercontent.com/assets/583202/3292071/41109a1c-f58b-11e3-9860-f4ba5ccd5e0c.png)


vs.

Not gross :thumbsup: 

![screen shot 2014-06-16 at 3 20 10 pm](https://cloud.githubusercontent.com/assets/583202/3292073/43e927b8-f58b-11e3-85b6-aa140532d693.png)