parabolaicon.png
  Author:       Jorge Araya Navarro
  Licence:      GPLv2+, FALv1.3+, CC-BY-SAv4.0+, FDLv1.3+
  Fetched from: https://git.parabola.nu/artwork.git/tree/icons?h=official/2018

report-bug.png
  Author:        'Master484' <http://m484games.ucoz.com/>
  License:       CC0 https://creativecommons.org/publicdomain/zero/1.0/
  Derrived from: https://opengameart.org/content/old-bugs
  Changes:       Cropped and re-scaled

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The Parabola logo can be redistributed and/or modified under the terms of either:

* The Free Art License as published by Copyleft Attitude;
  either version 1.3, or (at your option) any later version
  (COPYING_FAL_V1_3 or http://artlibre.org/licence/lal/en/)

* The Creative Commons Attribution-ShareAlike 4.0 International License
  as published by Creative Commons; either version 4.0,
  or (at your option) any later version
  (COPYING_CCBYSA_V4_0 or http://creativecommons.org/licenses/by-sa/4.0/)

* The GNU Free Documentation License as published by the Free Software Foundation;
  either version 1.3, or (at your option) any later version;
  with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts
  (COPYING_FDL_V1_3 or http://gnu.org/licenses/fdl-1.3.html)

* The GNU General Public License as published by the Free Software Foundation;
  either version 2, or (at your option) any later version
  (COPYING_GPL_V2_0 or http://gnu.org/licenses/gpl-2.0.html)

report-bug.png is CC0

* (https://creativecommons.org/publicdomain/zero/1.0/)