Chart is Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2023, 2024 Kevin Ryde Chart is licensed under the GNU General Public License GPL version 3, or at your option any later version. The complete text of GPL version 3 is in the file /usr/share/common-licenses/GPL-3 Further notes can be found under "Copying" in the manual /usr/share/info/chart.info.gz or /usr/share/gnome/help/chart/C/chart.html Program home page: http://user42.tuxfamily.org/chart/index.html