Lightens the picker control

Before:
![screen shot 2014-11-05 at 5 55 25 pm](https://cloud.githubusercontent.com/assets/186715/4929759/110091fa-6558-11e4-9c30-91e65f1fe4e1.png)

After:
![screen shot 2014-11-10 at 10 24 56 am](https://cloud.githubusercontent.com/assets/186715/4981215/f1093ff2-6906-11e4-8b63-a72956e14fe5.png)

Before:
![screen shot 2014-11-10 at 3 11 07 pm](https://cloud.githubusercontent.com/assets/186715/4985587/f83e6518-692e-11e4-8182-8e794d109225.png)

After:
![screen shot 2014-11-10 at 3 11 26 pm](https://cloud.githubusercontent.com/assets/186715/4985592/fbdfc90a-692e-11e4-82d3-0acd08d229f1.png)