# Licensing and exceptions

Neverball is released under the terms of the GNU General Public
License version 2 or a later version (at your option). The full text
of GPLv2 is included in `doc/legal/`.

* Neverball uses a number of external libraries. Certain features that
can be enabled at compile time require additional libraries. Binary
versions of these libraries are sometimes distributed with
Neverball. Licensing information for these libraries is included in
`doc/legal/`.
* Neverball includes a number of third party fonts. The DejaVu font
(`data/ttf/DejaVuSans-Bold.ttf`) license is included in
`doc/legal/`. The WenQuanYi Micro Hei font
(`data/ttf/wqy-microhei.ttc`) is dual licensed under Apache 2.0 or
GPLv3. The full text of GPLv3 is included in `doc/legal/`.
* The Octocat ball `data/ball/octocat/` uses the Octocat design with
permission from Github dated 2013-11-12. Wording of approval is in
`doc/legal`.
* The source file `share/fs_jpg.c` is based on `jdatasrc.c` from the
libjpeg project.
* The source files `share/miniz.[ch]` are included verbatim from the
miniz project (https://github.com/richgel999/miniz) and are licensed
under the MIT license. See `doc/legal/license-miniz.txt`.
* Easings in the file `share/ease.c` are licensed under GPLv3.