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All the [[drawings of our personas|contribute/personas]] are licensed under the [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/), copyright Thomas Verguet.
[[Announcement|http://thenounproject.com/term/announcement/1186/]]: Creative Commons - Attribution, by Olivier Guin.
author: [Firefox user 14030863](https://addons.mozilla.org/en-US/firefox/user/14030863/)
[[Check Mark|https://thenounproject.com/term/check/4489/]]: Public Domain, by Julian Norton.
[[Code|http://thenounproject.com/term/code/18033/]]: Creative Commons — Attribution, by Azis.
[[Command Line|https://thenounproject.com/icon/command-line-39108]]: Public Domain, by Daniel Gamage.
- Debian logo: Copyright (c) 1999 Software in the Public Interest.
[[Delete|https://thenounproject.com/term/delete/49691/]]: Creative Commons — Attribution, by Kervin Markle.
- [Forge](https://github.com/digitalbazaar/forge/), copyright Digital Bazaar, Inc.
[[Gears|http://thenounproject.com/term/gears/8949/]]: Creative Commons — Attribution, by Cris Dobbins.
[[Graphic Design|http://thenounproject.com/term/graphic_design/9198/]]: Creative Commons — Attribution, by Cornelius Danger.
However, Tails includes non-free firmware in order to work on as much hardware as possible.
- Icons from [[The Noun Project|http://thenounproject.com/]]:
[[Info|https://thenounproject.com/term/info/808461]]: Creative Commons — Attribution, by icongeek.
[[Laptop|https://thenounproject.com/term/laptop/6729]]: Public Domain, by Jean Yashu.
license: Creative Commons Attribution 3.0
[[Loan|http://thenounproject.com/term/loan/19538/]]: Public Domain, by Rohith M S.
[[Love|https://thenounproject.com/term/love/218846/]]: Creative Commons — Attribution, by Thomas Helbig.
[[!meta title="License and source code distribution"]]
Most of the software included in Tails is taken directly from upstream Debian packages and is neither modified nor recompiled by Tails.