Style OSD viewer.

Closes #735 

### nz353cp1092
![nz353cp1092](https://cloud.githubusercontent.com/assets/96776/4328838/6be84b40-3f8c-11e4-8890-fbca95827520.png)

### rh199fy0789
![rh199fy0789](https://cloud.githubusercontent.com/assets/96776/4328839/6bea28b6-3f8c-11e4-95ce-967112690506.png)