almende/vis — pull request #420 by cdjackson (2014-11-01 13:59:11+00:00)
Title: Add 'style' option to group for lineChart.

Allows overriding of class definitions which provides a much simpler interface for programatically setting user defined options.
For consistency, this probably ought to be supported by barChart as well, but I've not added this at this stage.