Now Bar Analyzer respects color scheme

Little fix for baranalyzer. Removed hardcoded colors, added color that depend on color scheme.

Before:
![before](https://cloud.githubusercontent.com/assets/3213697/3316294/5a734334-f701-11e3-81ce-82f5f2d99ea2.png)
After(yeah, my desktop is orange :) ):
![after](https://cloud.githubusercontent.com/assets/3213697/3316303/5dbb5eaa-f701-11e3-8db4-6f1e4118b4e5.png)