If you have questions, feature requests, want to contact the authors or you have any other kind of feedback related to this charting library, please feel free to join the discussions group.
Bugs or feature requests can be added to the issues tracker.
The source code is now available for checkout, browse or review here. You are also welcome to contribute patches or new features to the project. In order to contribute, please read and sign the Contributor Agreement first.
The authors can also be contacted by email. See the contact page.