path: root/COPYRIGHT.txt

# Exhaustive licensing information for files in the Godot Engine repository
# =========================================================================
#
# This file aims at documenting the copyright and license for every source
# file in the Godot Engine repository, and especially outline the files
# whose license differs from the MIT/Expat license used by Godot Engine.
#
# It is written as a machine-readable format following the debian/copyright
# specification. Globbing patterns (e.g. "Files: *") mean that they affect
# all corresponding files (also recursively in subfolders), apart from those
# with a more explicit copyright statement.
#
# Licenses are given with their debian/copyright short name (or SPDX identifier
# if no standard short name exists) and are all included in plain text at the
# end of this file (in alphabetical order).
#
# Disclaimer for thirdparty libraries:
# ------------------------------------
#
# Licensing details for thirdparty libraries in the 'thirdparty/' directory
# are given in summarized form, i.e. with only the "main" license described
# in the library's license statement. Different licenses of single files or
# code snippets in thirdparty libraries are not documented here.
# For example:
#   Files: ./thirdparty/zlib/
#   Copyright: 1995-2017, Jean-loup Gailly and Mark Adler
#   License: Zlib
# The exact copyright for each file in that library *may* differ, and some
# files or code snippets might be distributed under other compatible licenses
# (e.g. a public domain dedication), but as far as Godot Engine is concerned
# the library is considered as a whole under the Zlib license.
#
# Nota: When linking dynamically against thirdparty libraries instead of
# building them into the Godot binary, you may remove the corresponding
# license details from this file.

-----------------------------------------------------------------------

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Godot Engine
Upstream-Contact: Rémi Verschelde <contact@godotengine.org>
Source: https://github.com/godotengine/godot

Files: *
Comment: Godot Engine
Copyright: 2007-2020, Juan Linietsky, Ariel Manzur.
 2014-2020, Godot Engine contributors.
License: Expat

Files: ./icon.png
 ./icon.svg
 ./logo.png
 ./logo.svg
Comment: Godot Engine logo
Copyright: 2017, Andrea Calabró
License: CC-BY-3.0

Files: ./platform/android/java/aidl/com/android/vending/billing/IInAppBillingService.aidl
 ./platform/android/java/res/layout/status_bar_ongoing_event_progress_bar.xml
 ./platform/android/java/src/com/google/android/vending/expansion/downloader/*
 ./platform/android/java/src/com/google/android/vending/licensing/*
 ./platform/android/java/src/org/godotengine/godot/input/InputManagerCompat.java
 ./platform/android/java/src/org/godotengine/godot/input/InputManagerV16.java
Comment: The Android Open Source Project
Copyright: 2008-2013, The Android Open Source Project
License: Apache-2.0

Files: ./platform/android/java/src/com/android/vending/licensing/util/Base64.java
 ./platform/android/java/src/com/android/vending/licensing/util/Base64DecoderException.java
Comment: The Android Open Source Project
Copyright: 2002, Google Inc.
License: Apache-2.0

Files: ./platform/android/power_android.cpp
 ./platform/osx/power_osx.cpp
 ./platform/windows/power_windows.cpp
 ./platform/x11/power_x11.cpp
Comment: Simple DirectMedia Layer
Copyright: 1997-2017, Sam Lantinga
 2007-2020, Juan Linietsky, Ariel Manzur.
 2014-2020, Godot Engine contributors.
License: Expat and Zlib

Files: ./scene/animation/tween_interpolaters.cpp
Comment: Penner Easing
Copyright: 2001, Robert Penner
License: BSD-3-clause

Files: ./servers/physics/gjk_epa.cpp
 ./servers/physics/joints/generic_6dof_joint_sw.cpp
 ./servers/physics/joints/generic_6dof_joint_sw.h
 ./servers/physics/joints/hinge_joint_sw.cpp
 ./servers/physics/joints/hinge_joint_sw.h
 ./servers/physics/joints/jacobian_entry_sw.h
 ./servers/physics/joints/pin_joint_sw.cpp
 ./servers/physics/joints/pin_joint_sw.h
 ./servers/physics/joints/slider_joint_sw.cpp
 ./servers/physics/joints/slider_joint_sw.h
Comment: Bullet Continuous Collision Detection and Physics Library
Copyright: 2003-2008, Erwin Coumans
 2007-2020, Juan Linietsky, Ariel Manzur.
 2014-2020, Godot Engine contributors.
License: Expat and Zlib

Files: ./servers/physics/joints/cone_twist_joint_sw.cpp
 ./servers/physics/joints/cone_twist_joint_sw.h
Comment: Bullet Continuous Collision Detection and Physics Library
Copyright: 2007, Starbreeze Studios
 2007-2020, Juan Linietsky, Ariel Manzur.
 2014-2020, Godot Engine contributors.
License: Expat and Zlib

Files: ./thirdparty/assimp/
Comment: Open Asset Import Library (assimp)
Copyright: 2006-2016, assimp team
License: BSD-3-clause

Files: ./thirdparty/bullet/
Comment: Bullet Continuous Collision Detection and Physics Library
Copyright: 2003-2013, Erwin Coumans
License: Zlib

Files: ./thirdparty/certs/ca-certificates.crt
Comment: CA certificates
Copyright: Mozilla Contributors
License: MPL-2.0

Files: ./thirdparty/cvtt/
Comment: Convection Texture Tools Stand-Alone Kernels
Copyright: 2018, Eric Lasota
 2018, Microsoft Corp.
License: Expat

Files: ./thirdparty/enet/
Comment: ENet
Copyright: 2002-2016, Lee Salzman
License: Expat

Files: ./thirdparty/etc2comp/
Comment: Etc2Comp
Copyright: 2015, Etc2Comp Authors
License: Apache-2.0

Files: ./thirdparty/fonts/DroidSans*.ttf
Comment: DroidSans font
Copyright: 2008, The Android Open Source Project
License: Apache-2.0

Files: ./thirdparty/fonts/NotoSans*.ttf
Comment: Noto Sans font
Copyright: 2012, Google Inc.
License: OFL-1.1

Files: ./thirdparty/fonts/Hack_Regular.ttf
Comment: Hack font
Copyright: 2018, Source Foundry Authors
  2003, Bitstream Inc.
License: Expat and Bitstream Vera Fonts Copyright

Files: ./thirdparty/freetype/
Comment: The FreeType Project
Copyright: 1996-2019, David Turner, Robert Wilhelm, and Werner Lemberg.
License: FTL

Files: ./thirdparty/glad/
Comment: glad
Copyright: 2013-2019, David Herberth
License: Expat

Files: ./thirdparty/jpeg_compressor/
Comment: jpeg-compressor
Copyright: 2012, Rich Geldreich
License: public-domain

Files: ./thirdparty/libogg/
Comment: OggVorbis
Copyright: 2002, Xiph.org Foundation
License: BSD-3-clause

Files: ./thirdparty/libpng/
Comment: libpng
Copyright: 1995-2019, The PNG Reference Library Authors.
 2018-2019, Cosmin Truta.
 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
 1996-1997, Andreas Dilger.
 1995-1996, Guy Eric Schalnat, Group 42, Inc.
License: Zlib

Files: ./thirdparty/libsimplewebm/
Comment: libsimplewebm
Copyright: 2016, Błażej Szczygieł
License: Expat

Files: ./thirdparty/libsimplewebm/libwebm/
Comment: The WebM Project
Copyright: 2010, Google Inc.
License: BSD-3-clause

Files: ./thirdparty/libtheora/
Comment: OggTheora
Copyright: 2002-2009, Xiph.org Foundation
License: BSD-3-clause

Files: ./thirdparty/libvorbis/
Comment: OggVorbis
Copyright: 2002-2015, Xiph.org Foundation
License: BSD-3-clause

Files: ./thirdparty/libvpx/
Comment: The WebM Project
Copyright: 2010, The WebM Project authors.
License: BSD-3-clause

Files: ./thirdparty/libvpx/third_party/android/cpu-features.c
 ./thirdparty/libvpx/third_party/android/cpu-features.h
Comment: The Android Open Source Project
Copyright: 2010, The Android Open Source Project
License: BSD-2-clause

Files: ./thirdparty/libwebp/
Comment: WebP codec
Copyright: 2010, Google Inc.
License: BSD-3-clause

Files: ./thirdparty/mbedtls/
Comment: Mbed TLS
Copyright: 2006-2018, Arm Limited (or its affiliates)
License: Apache-2.0

Files: ./thirdparty/miniupnpc/
Comment: MiniUPnPc
Copyright: 2005-2018, Thomas Bernard
License: BSD-3-clause

Files: ./thirdparty/minizip/
Comment: MiniZip
Copyright: 1998-2010, Gilles Vollant
 2007-2008, Even Rouault
 2009-2010, Mathias Svensson
License: Zlib

Files: ./thirdparty/misc/clipper.cpp
 ./thirdparty/misc/clipper.hpp
Comment: Clipper
Copyright: 2010-2017, Angus Johnson
License: BSL-1.0

Files: ./thirdparty/misc/curl_hostcheck.c
 ./thirdparty/misc/curl_hostcheck.h
Comment: curl
Copyright: 1998-2012, Daniel Stenberg et al.
License: curl

Files: ./thirdparty/misc/easing_equations.cpp
Comment: Robert Penner's Easing Functions
Copyright: 2001, Robert Penner
License: BSD-3-clause

Files: ./thirdparty/misc/fastlz.c
 ./thirdparty/misc/fastlz.h
Comment: FastLZ
Copyright: 2005-2007, Ariya Hidayat
License: Expat

Files: ./thirdparty/misc/hq2x.cpp
 ./thirdparty/misc/hq2x.h
Comment: hq2x implementation
Copyright: 2016, Bruno Ribeiro
License: Apache-2.0

Files: ./thirdparty/misc/ifaddrs-android.cc
 ./thirdparty/misc/ifaddrs-android.h
Comment: libjingle
Copyright: 2012-2013, Google Inc.
License: BSD-3-clause

Files: ./thirdparty/misc/mikktspace.c
 ./thirdparty/misc/mikktspace.h
Comment: Tangent Space Normal Maps implementation
Copyright: 2011, Morten S. Mikkelsen
License: Zlib

Files: ./thirdparty/misc/pcg.cpp
 ./thirdparty/misc/pcg.h
Comment: Minimal PCG32 implementation
Copyright: 2014, M.E. O'Neill
License: Apache-2.0

Files: ./thirdparty/misc/smaz.c
 ./thirdparty/misc/smaz.h
Comment: SMAZ
Copyright: 2006-2009, Salvatore Sanfilippo
License: BSD-3-clause

Files: ./thirdparty/misc/triangulator.cpp
 ./thirdparty/misc/triangulator.h
Comment: PolyPartition
Copyright: 2011, Ivan Fratric
License: Expat

Files: ./thirdparty/misc/yuv2rgb.h
Comment: YUV2RGB
Copyright: 2008-2011, Robin Watts
License: BSD-2-clause

Files: ./thirdparty/nanosvg/
Comment: NanoSVG
Copyright: 2013-2014, Mikko Mononen
License: Zlib

Files: ./thirdparty/opus/
Comment: Opus
Copyright: 2001-2011, Xiph.Org, Skype Limited, Octasic,
 Jean-Marc Valin, Timothy B. Terriberry,
 CSIRO, Gregory Maxwell, Mark Borgerding,
 Erik de Castro Lopo
License: BSD-3-clause

Files: ./thirdparty/pcre2/
Comment: PCRE2
Copyright: 1997-2019, University of Cambridge,
 2009-2019, Zoltan Herczeg
License: BSD-3-clause

Files: ./thirdparty/pvrtccompressor/
Comment: PvrTcCompressor
Copyright: 2014, Jeffrey Lim.
License: BSD-3-clause

Files: ./thirdparty/recastnavigation/
Comment: Recast
Copyright: 2009, Mikko Mononen
License: Zlib

Files: ./thirdparty/rvo2/
Comment: RVO2
Copyright: 2016, University of North Carolina at Chapel Hill 
License: Apache 2.0

Files: ./thirdparty/squish/
Comment: libSquish
Copyright: 2006, Simon Brown
License: Expat

Files: ./thirdparty/tinyexr/
Comment: TinyEXR
Copyright: 2014-2019, Syoyo Fujita
  2002, Industrial Light & Magic, a division of Lucas Digital Ltd. LLC
License: BSD-3-clause

Files: ./thirdparty/vhacd/
Comment: V-HACD
Copyright: 2011, Khaled Mamou
  2003-2009, Erwin Coumans
License: BSD-3-clause

Files: ./thirdparty/wslay/
Comment: Wslay
Copyright: 2011-2015, Tatsuhiro Tsujikawa
License: Expat

Files: ./thirdparty/xatlas/
Comment: xatlas
Copyright: 2018, Jonathan Young
  2013, Thekla, Inc
  2006, NVIDIA Corporation, Ignacio Castano
License: Expat

Files: ./thirdparty/zlib/
Comment: zlib
Copyright: 1995-2017, Jean-loup Gailly and Mark Adler
License: Zlib

Files: ./thirdparty/zstd/
Comment: Zstandard
Copyright: 2016-2019, Facebook, Inc.
License: BSD-3-clause



License: Apache-2.0
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at
 .
     http://www.apache.org/licenses/LICENSE-2.0
 .
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.

License: Bitstream Vera Fonts Copyright
 Copyright (c) 2003 by Bitstream, Inc. All Rights Reserved. Bitstream Vera is a
 trademark of Bitstream, Inc.
 .
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 the fonts accompanying this license ("Fonts") and associated documentation
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 including without limitation the rights to use, copy, merge, publish,
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 whom the Font Software is furnished to do so, subject to the following
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 The above copyright and trademark notices and this permission notice shall be
 included in all copies of one or more of the Font Software typefaces.
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 The Font Software may be modified, altered, or added to, and in particular the
 designs of glyphs or characters in the Fonts may be modified and additional
 glyphs or characters may be added to the Fonts, only if the fonts are renamed
 to names not containing either the words "Bitstream" or the word "Vera".
 .
 This License becomes null and void to the extent applicable to Fonts or Font
 Software that has been modified and is distributed under the "Bitstream Vera"
 names.
 .
 The Font Software may be sold as part of a larger software package but no copy
 of one or more of the Font Software typefaces may be sold by itself.
 .
 THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
 TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL BITSTREAM OR THE GNOME FOUNDATION
 BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL,
 SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION
 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO
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 and Bitstream Inc., shall not be used in advertising or otherwise to promote
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 authorization from the GNOME Foundation or Bitstream Inc., respectively. For
 further information, contact: fonts at gnome dot org.

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 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:
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   list of conditions and the following disclaimer.
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 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
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License: BSL-1.0
 Boost Software License - Version 1.0 - August 17th, 2003
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 identifying the use of the Work in the Adaptation (e.g., "French
 translation of the Work by Original Author," or "Screenplay based on
 original Work by Original Author"). The credit required by this Section
 4 (b) may be implemented in any reasonable manner; provided, however,
 that in the case of a Adaptation or Collection, at a minimum such credit
 will appear, if a credit for all contributing authors of the Adaptation
 or Collection appears, then as part of these credits and in a manner at
 least as prominent as the credits for the other contributing authors.
 For the avoidance of doubt, You may only use the credit required by this
 Section for the purpose of attribution in the manner set out above and,
 by exercising Your rights under this License, You may not implicitly or
 explicitly assert or imply any connection with, sponsorship or
 endorsement by the Original Author, Licensor and/or Attribution Parties,
 as appropriate, of You or Your use of the Work, without the separate,
 express prior written permission of the Original Author, Licensor and/or
 Attribution Parties.
 .
 c. Except as otherwise agreed in writing by the Licensor or as may be
 otherwise permitted by applicable law, if You Reproduce, Distribute or
 Publicly Perform the Work either by itself or as part of any Adaptations
 or Collections, You must not distort, mutilate, modify or take other
 derogatory action in relation to the Work which would be prejudicial to
 the Original Author's honor or reputation. Licensor agrees that in those
 jurisdictions (e.g. Japan), in which any exercise of the right granted
 in Section 3(b) of this License (the right to make Adaptations) would be
 deemed to be a distortion, mutilation, modification or other derogatory
 action prejudicial to the Original Author's honor and reputation, the
 Licensor will waive or not assert, as appropriate, this Section, to the
 fullest extent permitted by the applicable national law, to enable You
 to reasonably exercise Your right under Section 3(b) of this License
 (right to make Adaptations) but not otherwise.
 .
 5. Representations, Warranties and Disclaimer
 .
 UNLESS OTHERWISE MUTUALLY AGREED TO BY THE PARTIES IN WRITING, LICENSOR
 OFFERS THE WORK AS-IS AND MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY
 KIND CONCERNING THE WORK, EXPRESS, IMPLIED, STATUTORY OR OTHERWISE,
 INCLUDING, WITHOUT LIMITATION, WARRANTIES OF TITLE, MERCHANTIBILITY,
 FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT, OR THE ABSENCE OF
 LATENT OR OTHER DEFECTS, ACCURACY, OR THE PRESENCE OF ABSENCE OF ERRORS,
 WHETHER OR NOT DISCOVERABLE. SOME JURISDICTIONS DO NOT ALLOW THE
 EXCLUSION OF IMPLIED WARRANTIES, SO SUCH EXCLUSION MAY NOT APPLY TO YOU.
 .
 6. Limitation on Liability. EXCEPT TO THE EXTENT REQUIRED BY APPLICABLE
 LAW, IN NO EVENT WILL LICENSOR BE LIABLE TO YOU ON ANY LEGAL THEORY FOR
 ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES
 ARISING OUT OF THIS LICENSE OR THE USE OF THE WORK, EVEN IF LICENSOR HAS
 BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 .
 7. Termination
 .
 a. This License and the rights granted hereunder will terminate
 automatically upon any breach by You of the terms of this License.
 Individuals or entities who have received Adaptations or Collections
 from You under this License, however, will not have their licenses
 terminated provided such individuals or entities remain in full
 compliance with those licenses. Sections 1, 2, 5, 6, 7, and 8 will
 survive any termination of this License.
 .
 b. Subject to the above terms and conditions, the license granted here
 is perpetual (for the duration of the applicable copyright in the Work).
 Notwithstanding the above, Licensor reserves the right to release the
 Work under different license terms or to stop distributing the Work at
 any time; provided, however that any such election will not serve to
 withdraw this License (or any other license that has been, or is
 required to be, granted under the terms of this License), and this
 License will continue in full force and effect unless terminated as
 stated above.
 .
 8. Miscellaneous
 .
 a. Each time You Distribute or Publicly Perform the Work or a
 Collection, the Licensor offers to the recipient a license to the Work
 on the same terms and conditions as the license granted to You under
 this License.
 .
 b. Each time You Distribute or Publicly Perform an Adaptation, Licensor
 offers to the recipient a license to the original Work on the same terms
 and conditions as the license granted to You under this License.
 .
 c. If any provision of this License is invalid or unenforceable under
 applicable law, it shall not affect the validity or enforceability of
 the remainder of the terms of this License, and without further action
 by the parties to this agreement, such provision shall be reformed to
 the minimum extent necessary to make such provision valid and
 enforceable.
 .
 d. No term or provision of this License shall be deemed waived and no
 breach consented to unless such waiver or consent shall be in writing
 and signed by the party to be charged with such waiver or consent. This
 License constitutes the entire agreement between the parties with
 respect to the Work licensed here. There are no understandings,
 agreements or representations with respect to the Work not specified
 here. Licensor shall not be bound by any additional provisions that may
 appear in any communication from You.
 .
 e. This License may not be modified without the mutual written agreement
 of the Licensor and You.
 .
 f. The rights granted under, and the subject matter referenced, in this
 License were drafted utilizing the terminology of the Berne Convention
 for the Protection of Literary and Artistic Works (as amended on
 September 28, 1979), the Rome Convention of 1961, the WIPO Copyright
 Treaty of 1996, the WIPO Performances and Phonograms Treaty of 1996 and
 the Universal Copyright Convention (as revised on July 24, 1971). These
 rights and subject matter take effect in the relevant jurisdiction in
 which the License terms are sought to be enforced according to the
 corresponding provisions of the implementation of those treaty
 provisions in the applicable national law. If the standard suite of
 rights granted under applicable copyright law includes additional rights
 not granted under this License, such additional rights are deemed to be
 included in the License; this License is not intended to restrict the
 license of any rights under applicable law.
 .
 Creative Commons Notice
 .
 Creative Commons is not a party to this License, and makes no warranty
 whatsoever in connection with the Work. Creative Commons will not be
 liable to You or any party on any legal theory for any damages
 whatsoever, including without limitation any general, special,
 incidental or consequential damages arising in connection to this
 license. Notwithstanding the foregoing two (2) sentences, if Creative
 Commons has expressly identified itself as the Licensor hereunder, it
 shall have all rights and obligations of Licensor.
 .
 Except for the limited purpose of indicating to the public that the Work
 is licensed under the CCPL, Creative Commons does not authorize the use
 by either party of the trademark "Creative Commons" or any related
 trademark or logo of Creative Commons without the prior written consent
 of Creative Commons. Any permitted use will be in compliance with
 Creative Commons' then-current trademark usage guidelines, as may be
 published on its website or otherwise made available upon request from
 time to time. For the avoidance of doubt, this trademark restriction
 does not form part of this License.
 .
 Creative Commons may be contacted at http://creativecommons.org/.

License: curl
 All rights reserved.
 .
 Permission to use, copy, modify, and distribute this software for any purpose
 with or without fee is hereby granted, provided that the above copyright
 notice and this permission notice appear in all copies.
 .
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN
 NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
 OR OTHER DEALINGS IN THE SOFTWARE.
 .
 Except as contained in this notice, the name of a copyright holder shall not
 be used in advertising or otherwise to promote the sale, use or other dealings
 in this Software without prior written authorization of the copyright holder.

License: Expat
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
 "Software"), to deal in the Software without restriction, including
 without limitation the rights to use, copy, modify, merge, publish,
 distribute, sublicense, and/or sell copies of the Software, and to
 permit persons to whom the Software is furnished to do so, subject to
 the following conditions:
 .
 The above copyright notice and this permission notice shall be
 included in all copies or substantial portions of the Software.
 .
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

License: FTL
                    The FreeType Project LICENSE
                    ----------------------------
 .
                            2000-Feb-08
 .
                       Copyright 1996-2000 by
          David Turner, Robert Wilhelm, and Werner Lemberg
 .
 .
 .
 Introduction
 ============
 .
 The FreeType  Project is distributed in  several archive packages;
 some of them may contain, in addition to the FreeType font engine,
 various tools and  contributions which rely on, or  relate to, the
 FreeType Project.
 .
 This  license applies  to all  files found  in such  packages, and
 which do not  fall under their own explicit  license.  The license
 affects  thus  the  FreeType   font  engine,  the  test  programs,
 documentation and makefiles, at the very least.
 .
 This  license   was  inspired  by  the  BSD,   Artistic,  and  IJG
 (Independent JPEG  Group) licenses, which  all encourage inclusion
 and  use of  free  software in  commercial  and freeware  products
 alike.  As a consequence, its main points are that:
 .
   o We don't promise that this software works. However, we will be
     interested in any kind of bug reports. (`as is' distribution)
 .
   o You can  use this software for whatever you  want, in parts or
     full form, without having to pay us. (`royalty-free' usage)
 .
   o You may not pretend that  you wrote this software.  If you use
     it, or  only parts of it,  in a program,  you must acknowledge
     somewhere  in  your  documentation  that  you  have  used  the
     FreeType code. (`credits')
 .
 We  specifically  permit  and  encourage  the  inclusion  of  this
 software, with  or without modifications,  in commercial products.
 We  disclaim  all warranties  covering  The  FreeType Project  and
 assume no liability related to The FreeType Project.
 .
 .
 Legal Terms
 ===========
 .
 0. Definitions
 --------------
 .
 Throughout this license,  the terms `package', `FreeType Project',
 and  `FreeType  archive' refer  to  the  set  of files  originally
 distributed  by the  authors  (David Turner,  Robert Wilhelm,  and
 Werner Lemberg) as the `FreeType Project', be they named as alpha,
 beta or final release.
 .
 `You' refers to  the licensee, or person using  the project, where
 `using' is a generic term including compiling the project's source
 code as  well as linking it  to form a  `program' or `executable'.
 This  program is  referred to  as  `a program  using the  FreeType
 engine'.
 .
 This  license applies  to all  files distributed  in  the original
 FreeType  Project,   including  all  source   code,  binaries  and
 documentation,  unless  otherwise  stated   in  the  file  in  its
 original, unmodified form as  distributed in the original archive.
 If you are  unsure whether or not a particular  file is covered by
 this license, you must contact us to verify this.
 .
 The FreeType  Project is copyright (C) 1996-2000  by David Turner,
 Robert Wilhelm, and Werner Lemberg.  All rights reserved except as
 specified below.
 .
 1. No Warranty
 --------------
 .
 THE FREETYPE PROJECT  IS PROVIDED `AS IS' WITHOUT  WARRANTY OF ANY
 KIND, EITHER  EXPRESS OR IMPLIED,  INCLUDING, BUT NOT  LIMITED TO,
 WARRANTIES  OF  MERCHANTABILITY   AND  FITNESS  FOR  A  PARTICULAR
 PURPOSE.  IN NO EVENT WILL ANY OF THE AUTHORS OR COPYRIGHT HOLDERS
 BE LIABLE  FOR ANY DAMAGES CAUSED  BY THE USE OR  THE INABILITY TO
 USE, OF THE FREETYPE PROJECT.
 .
 2. Redistribution
 -----------------
 .
 This  license  grants  a  worldwide, royalty-free,  perpetual  and
 irrevocable right  and license to use,  execute, perform, compile,
 display,  copy,   create  derivative  works   of,  distribute  and
 sublicense the  FreeType Project (in  both source and  object code
 forms)  and  derivative works  thereof  for  any  purpose; and  to
 authorize others  to exercise  some or all  of the  rights granted
 herein, subject to the following conditions:
 .
   o Redistribution  of source code  must retain this  license file
     (`LICENSE.TXT') unaltered; any additions, deletions or changes
     to   the  original   files  must   be  clearly   indicated  in
     accompanying  documentation.   The  copyright notices  of  the
     unaltered, original  files must be preserved in  all copies of
     source files.
 .
   o Redistribution in binary form must provide a  disclaimer  that
     states  that  the software is based in part of the work of the
     FreeType Team,  in  the  distribution  documentation.  We also
     encourage you to put an URL to the FreeType web page  in  your
     documentation, though this isn't mandatory.
 .
 These conditions  apply to any  software derived from or  based on
 the FreeType Project,  not just the unmodified files.   If you use
 our work, you  must acknowledge us.  However, no  fee need be paid
 to us.
 .
 3. Advertising
 --------------
 .
 Neither the  FreeType authors and  contributors nor you  shall use
 the name of the  other for commercial, advertising, or promotional
 purposes without specific prior written permission.
 .
 We suggest,  but do not require, that  you use one or  more of the
 following phrases to refer  to this software in your documentation
 or advertising  materials: `FreeType Project',  `FreeType Engine',
 `FreeType library', or `FreeType Distribution'.
 .
 As  you have  not signed  this license,  you are  not  required to
 accept  it.   However,  as  the FreeType  Project  is  copyrighted
 material, only  this license, or  another one contracted  with the
 authors, grants you  the right to use, distribute,  and modify it.
 Therefore,  by  using,  distributing,  or modifying  the  FreeType
 Project, you indicate that you understand and accept all the terms
 of this license.
 .
 4. Contacts
 -----------
 .
 There are two mailing lists related to FreeType:
 .
   o freetype@freetype.org
 .
     Discusses general use and applications of FreeType, as well as
     future and  wanted additions to the  library and distribution.
     If  you are looking  for support,  start in  this list  if you
     haven't found anything to help you in the documentation.
 .
   o devel@freetype.org
 .
     Discusses bugs,  as well  as engine internals,  design issues,
     specific licenses, porting, etc.
 .
   o http://www.freetype.org
 .
     Holds the current  FreeType web page, which will  allow you to
     download  our  latest  development  version  and  read  online
     documentation.
 .
 You can also contact us individually at:
 .
   David Turner      <david.turner@freetype.org>
   Robert Wilhelm    <robert.wilhelm@freetype.org>
   Werner Lemberg    <werner.lemberg@freetype.org>

License: MPL-2.0
 Mozilla Public License Version 2.0
 ==================================
 .
 1. Definitions
 --------------
 .
 1.1. "Contributor"
     means each individual or legal entity that creates, contributes to
     the creation of, or owns Covered Software.
 .
 1.2. "Contributor Version"
     means the combination of the Contributions of others (if any) used
     by a Contributor and that particular Contributor's Contribution.
 .
 1.3. "Contribution"
     means Covered Software of a particular Contributor.
 .
 1.4. "Covered Software"
     means Source Code Form to which the initial Contributor has attached
     the notice in Exhibit A, the Executable Form of such Source Code
     Form, and Modifications of such Source Code Form, in each case
     including portions thereof.
 .
 1.5. "Incompatible With Secondary Licenses"
     means
 .
     (a) that the initial Contributor has attached the notice described
         in Exhibit B to the Covered Software; or
 .
     (b) that the Covered Software was made available under the terms of
         version 1.1 or earlier of the License, but not also under the
         terms of a Secondary License.
 .
 1.6. "Executable Form"
     means any form of the work other than Source Code Form.
 .
 1.7. "Larger Work"
     means a work that combines Covered Software with other material, in
     a separate file or files, that is not Covered Software.
 .
 1.8. "License"
     means this document.
 .
 1.9. "Licensable"
     means having the right to grant, to the maximum extent possible,
     whether at the time of the initial grant or subsequently, any and
     all of the rights conveyed by this License.
 .
 1.10. "Modifications"
     means any of the following:
 .
     (a) any file in Source Code Form that results from an addition to,
         deletion from, or modification of the contents of Covered
         Software; or
 .
     (b) any new file in Source Code Form that contains any Covered
         Software.
 .
 1.11. "Patent Claims" of a Contributor
     means any patent claim(s), including without limitation, method,
     process, and apparatus claims, in any patent Licensable by such
     Contributor that would be infringed, but for the grant of the
     License, by the making, using, selling, offering for sale, having
     made, import, or transfer of either its Contributions or its
     Contributor Version.
 .
 1.12. "Secondary License"
     means either the GNU General Public License, Version 2.0, the GNU
     Lesser General Public License, Version 2.1, the GNU Affero General
     Public License, Version 3.0, or any later versions of those
     licenses.
 .
 1.13. "Source Code Form"
     means the form of the work preferred for making modifications.
 .
 1.14. "You" (or "Your")
     means an individual or a legal entity exercising rights under this
     License. For legal entities, "You" includes any entity that
     controls, is controlled by, or is under common control with You. For
     purposes of this definition, "control" means (a) the power, direct
     or indirect, to cause the direction or management of such entity,
     whether by contract or otherwise, or (b) ownership of more than
     fifty percent (50%) of the outstanding shares or beneficial
     ownership of such entity.
 .
 2. License Grants and Conditions
 --------------------------------
 .
 2.1. Grants
 .
 Each Contributor hereby grants You a world-wide, royalty-free,
 non-exclusive license:
 .
 (a) under intellectual property rights (other than patent or trademark)
     Licensable by such Contributor to use, reproduce, make available,
     modify, display, perform, distribute, and otherwise exploit its
     Contributions, either on an unmodified basis, with Modifications, or
     as part of a Larger Work; and
 .
 (b) under Patent Claims of such Contributor to make, use, sell, offer
     for sale, have made, import, and otherwise transfer either its
     Contributions or its Contributor Version.
 .
 2.2. Effective Date
 .
 The licenses granted in Section 2.1 with respect to any Contribution
 become effective for each Contribution on the date the Contributor first
 distributes such Contribution.
 .
 2.3. Limitations on Grant Scope
 .
 The licenses granted in this Section 2 are the only rights granted under
 this License. No additional rights or licenses will be implied from the
 distribution or licensing of Covered Software under this License.
 Notwithstanding Section 2.1(b) above, no patent license is granted by a
 Contributor:
 .
 (a) for any code that a Contributor has removed from Covered Software;
     or
 .
 (b) for infringements caused by: (i) Your and any other third party's
     modifications of Covered Software, or (ii) the combination of its
     Contributions with other software (except as part of its Contributor
     Version); or
 .
 (c) under Patent Claims infringed by Covered Software in the absence of
     its Contributions.
 .
 This License does not grant any rights in the trademarks, service marks,
 or logos of any Contributor (except as may be necessary to comply with
 the notice requirements in Section 3.4).
 .
 2.4. Subsequent Licenses
 .
 No Contributor makes additional grants as a result of Your choice to
 distribute the Covered Software under a subsequent version of this
 License (see Section 10.2) or under the terms of a Secondary License (if
 permitted under the terms of Section 3.3).
 .
 2.5. Representation
 .
 Each Contributor represents that the Contributor believes its
 Contributions are its original creation(s) or it has sufficient rights
 to grant the rights to its Contributions conveyed by this License.
 .
 2.6. Fair Use
 .
 This License is not intended to limit any rights You have under
 applicable copyright doctrines of fair use, fair dealing, or other
 equivalents.
 .
 2.7. Conditions
 .
 Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
 in Section 2.1.
 .
 3. Responsibilities
 -------------------
 .
 3.1. Distribution of Source Form
 .
 All distribution of Covered Software in Source Code Form, including any
 Modifications that You create or to which You contribute, must be under
 the terms of this License. You must inform recipients that the Source
 Code Form of the Covered Software is governed by the terms of this
 License, and how they can obtain a copy of this License. You may not
 attempt to alter or restrict the recipients' rights in the Source Code
 Form.
 .
 3.2. Distribution of Executable Form
 .
 If You distribute Covered Software in Executable Form then:
 .
 (a) such Covered Software must also be made available in Source Code
     Form, as described in Section 3.1, and You must inform recipients of
     the Executable Form how they can obtain a copy of such Source Code
     Form by reasonable means in a timely manner, at a charge no more
     than the cost of distribution to the recipient; and
 .
 (b) You may distribute such Executable Form under the terms of this
     License, or sublicense it under different terms, provided that the
     license for the Executable Form does not attempt to limit or alter
     the recipients' rights in the Source Code Form under this License.
 .
 3.3. Distribution of a Larger Work
 .
 You may create and distribute a Larger Work under terms of Your choice,
 provided that You also comply with the requirements of this License for
 the Covered Software. If the Larger Work is a combination of Covered
 Software with a work governed by one or more Secondary Licenses, and the
 Covered Software is not Incompatible With Secondary Licenses, this
 License permits You to additionally distribute such Covered Software
 under the terms of such Secondary License(s), so that the recipient of
 the Larger Work may, at their option, further distribute the Covered
 Software under the terms of either this License or such Secondary
 License(s).
 .
 3.4. Notices
 .
 You may not remove or alter the substance of any license notices
 (including copyright notices, patent notices, disclaimers of warranty,
 or limitations of liability) contained within the Source Code Form of
 the Covered Software, except that You may alter any license notices to
 the extent required to remedy known factual inaccuracies.
 .
 3.5. Application of Additional Terms
 .
 You may choose to offer, and to charge a fee for, warranty, support,
 indemnity or liability obligations to one or more recipients of Covered
 Software. However, You may do so only on Your own behalf, and not on
 behalf of any Contributor. You must make it absolutely clear that any
 such warranty, support, indemnity, or liability obligation is offered by
 You alone, and You hereby agree to indemnify every Contributor for any
 liability incurred by such Contributor as a result of warranty, support,
 indemnity or liability terms You offer. You may include additional
 disclaimers of warranty and limitations of liability specific to any
 jurisdiction.
 .
 4. Inability to Comply Due to Statute or Regulation
 ---------------------------------------------------
 .
 If it is impossible for You to comply with any of the terms of this
 License with respect to some or all of the Covered Software due to
 statute, judicial order, or regulation then You must: (a) comply with
 the terms of this License to the maximum extent possible; and (b)
 describe the limitations and the code they affect. Such description must
 be placed in a text file included with all distributions of the Covered
 Software under this License. Except to the extent prohibited by statute
 or regulation, such description must be sufficiently detailed for a
 recipient of ordinary skill to be able to understand it.
 .
 5. Termination
 --------------
 .
 5.1. The rights granted under this License will terminate automatically
 if You fail to comply with any of its terms. However, if You become
 compliant, then the rights granted under this License from a particular
 Contributor are reinstated (a) provisionally, unless and until such
 Contributor explicitly and finally terminates Your grants, and (b) on an
 ongoing basis, if such Contributor fails to notify You of the
 non-compliance by some reasonable means prior to 60 days after You have
 come back into compliance. Moreover, Your grants from a particular
 Contributor are reinstated on an ongoing basis if such Contributor
 notifies You of the non-compliance by some reasonable means, this is the
 first time You have received notice of non-compliance with this License
 from such Contributor, and You become compliant prior to 30 days after
 Your receipt of the notice.
 .
 5.2. If You initiate litigation against any entity by asserting a patent
 infringement claim (excluding declaratory judgment actions,
 counter-claims, and cross-claims) alleging that a Contributor Version
 directly or indirectly infringes any patent, then the rights granted to
 You by any and all Contributors for the Covered Software under Section
 2.1 of this License shall terminate.
 .
 5.3. In the event of termination under Sections 5.1 or 5.2 above, all
 end user license agreements (excluding distributors and resellers) which
 have been validly granted by You or Your distributors under this License
 prior to termination shall survive termination.
 .
 ************************************************************************
 *                                                                      *
 *  6. Disclaimer of Warranty                                           *
 *  -------------------------                                           *
 *                                                                      *
 *  Covered Software is provided under this License on an "as is"       *
 *  basis, without warranty of any kind, either expressed, implied, or  *
 *  statutory, including, without limitation, warranties that the       *
 *  Covered Software is free of defects, merchantable, fit for a        *
 *  particular purpose or non-infringing. The entire risk as to the     *
 *  quality and performance of the Covered Software is with You.        *
 *  Should any Covered Software prove defective in any respect, You     *
 *  (not any Contributor) assume the cost of any necessary servicing,   *
 *  repair, or correction. This disclaimer of warranty constitutes an   *
 *  essential part of this License. No use of any Covered Software is   *
 *  authorized under this License except under this disclaimer.         *
 *                                                                      *
 ************************************************************************
 .
 ************************************************************************
 *                                                                      *
 *  7. Limitation of Liability                                          *
 *  --------------------------                                          *
 *                                                                      *
 *  Under no circumstances and under no legal theory, whether tort      *
 *  (including negligence), contract, or otherwise, shall any           *
 *  Contributor, or anyone who distributes Covered Software as          *
 *  permitted above, be liable to You for any direct, indirect,         *
 *  special, incidental, or consequential damages of any character      *
 *  including, without limitation, damages for lost profits, loss of    *
 *  goodwill, work stoppage, computer failure or malfunction, or any    *
 *  and all other commercial damages or losses, even if such party      *
 *  shall have been informed of the possibility of such damages. This   *
 *  limitation of liability shall not apply to liability for death or   *
 *  personal injury resulting from such party's negligence to the       *
 *  extent applicable law prohibits such limitation. Some               *
 *  jurisdictions do not allow the exclusion or limitation of           *
 *  incidental or consequential damages, so this exclusion and          *
 *  limitation may not apply to You.                                    *
 *                                                                      *
 ************************************************************************
 .
 8. Litigation
 -------------
 .
 Any litigation relating to this License may be brought only in the
 courts of a jurisdiction where the defendant maintains its principal
 place of business and such litigation shall be governed by laws of that
 jurisdiction, without reference to its conflict-of-law provisions.
 Nothing in this Section shall prevent a party's ability to bring
 cross-claims or counter-claims.
 .
 9. Miscellaneous
 ----------------
 .
 This License represents the complete agreement concerning the subject
 matter hereof. If any provision of this License is held to be
 unenforceable, such provision shall be reformed only to the extent
 necessary to make it enforceable. Any law or regulation which provides
 that the language of a contract shall be construed against the drafter
 shall not be used to construe this License against a Contributor.
 .
 10. Versions of the License
 ---------------------------
 .
 10.1. New Versions
 .
 Mozilla Foundation is the license steward. Except as provided in Section
 10.3, no one other than the license steward has the right to modify or
 publish new versions of this License. Each version will be given a
 distinguishing version number.
 .
 10.2. Effect of New Versions
 .
 You may distribute the Covered Software under the terms of the version
 of the License under which You originally received the Covered Software,
 or under the terms of any subsequent version published by the license
 steward.
 .
 10.3. Modified Versions
 .
 If you create software not governed by this License, and you want to
 create a new license for such software, you may create and use a
 modified version of this License if you rename the license and remove
 any references to the name of the license steward (except to note that
 such modified license differs from this License).
 .
 10.4. Distributing Source Code Form that is Incompatible With Secondary
 Licenses
 .
 If You choose to distribute Source Code Form that is Incompatible With
 Secondary Licenses under the terms of this version of the License, the
 notice described in Exhibit B of this License must be attached.
 .
 Exhibit A - Source Code Form License Notice
 -------------------------------------------
 .
   This Source Code Form is subject to the terms of the Mozilla Public
   License, v. 2.0. If a copy of the MPL was not distributed with this
   file, You can obtain one at http://mozilla.org/MPL/2.0/.
 .
 If it is not possible or desirable to put the notice in a particular
 file, then You may include the notice in a location (such as a LICENSE
 file in a relevant directory) where a recipient would be likely to look
 for such a notice.
 .
 You may add additional accurate notices of copyright ownership.
 .
 Exhibit B - "Incompatible With Secondary Licenses" Notice
 ---------------------------------------------------------
 .
   This Source Code Form is "Incompatible With Secondary Licenses", as
   defined by the Mozilla Public License, v. 2.0.

License: OFL-1.1
 PREAMBLE
 The goals of the Open Font License (OFL) are to stimulate worldwide
 development of collaborative font projects, to support the font creation
 efforts of academic and linguistic communities, and to provide a free and
 open framework in which fonts may be shared and improved in partnership
 with others.
 .
 The OFL allows the licensed fonts to be used, studied, modified and
 redistributed freely as long as they are not sold by themselves. The
 fonts, including any derivative works, can be bundled, embedded,
 redistributed and/or sold with any software provided that any reserved
 names are not used by derivative works. The fonts and derivatives,
 however, cannot be released under any other type of license. The
 requirement for fonts to remain under this license does not apply
 to any document created using the fonts or their derivatives.
 .
 DEFINITIONS
 "Font Software" refers to the set of files released by the Copyright
 Holder(s) under this license and clearly marked as such. This may
 include source files, build scripts and documentation.
 .
 "Reserved Font Name" refers to any names specified as such after the
 copyright statement(s).
 .
 "Original Version" refers to the collection of Font Software components as
 distributed by the Copyright Holder(s).
 .
 "Modified Version" refers to any derivative made by adding to, deleting,
 or substituting -- in part or in whole -- any of the components of the
 Original Version, by changing formats or by porting the Font Software to a
 new environment.
 .
 "Author" refers to any designer, engineer, programmer, technical
 writer or other person who contributed to the Font Software.
 .
 PERMISSION & CONDITIONS
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of the Font Software, to use, study, copy, merge, embed, modify,
 redistribute, and sell modified and unmodified copies of the Font
 Software, subject to the following conditions:
 .
 1) Neither the Font Software nor any of its individual components,
 in Original or Modified Versions, may be sold by itself.
 .
 2) Original or Modified Versions of the Font Software may be bundled,
 redistributed and/or sold with any software, provided that each copy
 contains the above copyright notice and this license. These can be
 included either as stand-alone text files, human-readable headers or
 in the appropriate machine-readable metadata fields within text or
 binary files as long as those fields can be easily viewed by the user.
 .
 3) No Modified Version of the Font Software may use the Reserved Font
 Name(s) unless explicit written permission is granted by the corresponding
 Copyright Holder. This restriction only applies to the primary font name as
 presented to the users.
 .
 4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
 Software shall not be used to promote, endorse or advertise any
 Modified Version, except to acknowledge the contribution(s) of the
 Copyright Holder(s) and the Author(s) or with their explicit written
 permission.
 .
 5) The Font Software, modified or unmodified, in part or in whole,
 must be distributed entirely under this license, and must not be
 distributed under any other license. The requirement for fonts to
 remain under this license does not apply to any document created
 using the Font Software.
 .
 TERMINATION
 This license becomes null and void if any of the above conditions are
 not met.
 .
 DISCLAIMER
 THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
 OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
 COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
 DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE.

License: Zlib
 This software is provided 'as-is', without any express or implied
 warranty.  In no event will the authors be held liable for any damages
 arising from the use of this software.
 .
 Permission is granted to anyone to use this software for any purpose,
 including commercial applications, and to alter it and redistribute it
 freely, subject to the following restrictions:
 .
 1. The origin of this software must not be misrepresented; you must not
    claim that you wrote the original software. If you use this software
    in a product, an acknowledgment in the product documentation would be
    appreciated but is not required.
 2. Altered source versions must be plainly marked as such, and must not be
    misrepresented as being the original software.
 3. This notice may not be removed or altered from any source distribution.