As modlogan uses gd for the image generation we ship the license ofgd with the documentation:-----------------------------------------------------------------------------                                   gd 1.8.1                                       A graphics library for fast image creation  Credits and license terms     In order to resolve any possible confusion regarding the authorship of   gd, the following copyright statement covers all of the authors who   have required such a statement. _If you are aware of any oversights in   this copyright notice, please contact Thomas Boutell who will be   pleased to correct them._COPYRIGHT STATEMENT FOLLOWS THIS LINE     Portions copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000 by Cold     Spring Harbor Laboratory. Funded under Grant P41-RR02188 by the     National Institutes of Health.          Portions copyright 1996, 1997, 1998, 1999, 2000 by Boutell.Com,     Inc.          Portions relating to GD2 format copyright 1999, 2000 Philip Warner.          Portions relating to PNG copyright 1999, 2000 Greg Roelofs.          Portions relating to libttf copyright 1999, 2000 John Ellson     (ellson@lucent.com).          Portions relating to JPEG copyright 2000, Doug Becker and copyright     (C) 1994-1998, Thomas G. Lane. This software is based in part on     the work of the Independent JPEG Group.          Portions relating to WBMP copyright 2000 Maurice Szmurlo.          _Permission has been granted to copy, distribute and modify gd in     any context without fee, including a commercial application,     provided that this notice is present in user-accessible supporting     documentation._          This does not affect your ownership of the derived work itself, and     the intent is to assure proper credit for the authors of gd, not to     interfere with your productive use of gd. If you have questions,     ask. "Derived works" includes all programs that utilize the     library. Credit must be given in user-accessible documentation.          _This software is provided "AS IS."_ The copyright holders disclaim     all warranties, either express or implied, including but not     limited to implied warranties of merchantability and fitness for a     particular purpose, with respect to this code and accompanying     documentation.          Although their code does not appear in gd 1.8.1, the authors wish     to thank David Koblas, David Rowley, and Hutchison Avenue Software     Corporation for their prior contributions.     END OF COPYRIGHT STATEMENT