Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Source: 
 https://wiki.debian.org/DebianArt/Themes/Joy
 https://wiki.debian.org/DebianArt/Themes/Lines
 https://wiki.debian.org/DebianArt/Themes/softWaves
 https://wiki.debian.org/DebianArt/Themes/futurePrototype

Files: joy/*
Copyright: 2012 Adrien Aubourg <adrien.aubourg@gmail.com>
License: GPL-2

Files: joy/greeter-gtkrc lines/greeter-gtkrc
Copyright: Kenneth Wimer <kwwii@ubuntu.com>
           Conn O'Griofa <connogriofa@gmail.com>
           Jonathan Carter <jonathan@ubuntu.com>
           Dave Camp <dave@ximian.com>
           2015 Vagrant Cascadian <vagrant@debian.org>
License: GPL-2

Files: lines/background.svg
Copyright: 2014 Juliette Taka BELIN <juliettetaka.belin@gmail.com>
License: GPL-2+

Files: softwaves/login_1024_768.svg
Copyright: 2016 Juliette Taka BELIN <juliettetaka.belin@gmail.com>
License: GPL-2+

Files: lines/logo.png
Copyright: 2015 Vagrant Cascadian <vagrant@debian.org>
License: GPL-2+

Files: futureprototype/login_1024_768.svg
Copyright: 2018 Alex Makas <radicalmonday@gmail.com>
License: GPL-2+

Files: debian/*
Copyright: 2011-2019 Jonathan Carter <jonathan@ubuntu.com>
           2012-2017 Vagrant Cascadian <vagrant@debian.org>
License: GPL-2+

License: GPL-2
 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License as
 published by the Free Software Foundation; version 2.
 .
 On Debian systems, a copy of the GNU General Public License version
 2 may be found in the file /usr/share/common-licenses/GPL-2.

License: GPL-2+
 This package is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.
 .
 This package is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 .
 You should have received a copy of the GNU General Public License
 along with this program. If not, see <http://www.gnu.org/licenses/>
 .
 On Debian systems, the complete text of the GNU General
 Public License version 2 can be found in "/usr/share/common-licenses/GPL-2".