changing gold color to darker gray

changing gold color to dark gray.

was: 
![github_2013-11-17_16-23-54](https://f.cloud.github.com/assets/2972876/1559403/bd3e8788-4fce-11e3-9603-1ce0605e5e16.png)

now: 
![github_2013-11-17_16-24-29](https://f.cloud.github.com/assets/2972876/1559404/c170a80e-4fce-11e3-8532-39091681bb00.png)