Hi, Thanks for the cool lib! Is there a reason for 'leading: -3' option [here](https://github.com/Fullscreen/squid/blob/master/lib/squid/plotter.rb#L126)? It results in text overlap on overflow: <img width="80" alt="example" src="https://cloud.githubusercontent.com/assets/6780617/13324141/6b67bbe0-dbaa-11e5-938c-564864d7ef59.png">