# Keyshape Acknowledgements

Portions of this software may utilize the following copyrighted material, the use of which is hereby acknowledged.

### Boost

boost.org

    Boost Software License - Version 1.0 - August 17th, 2003

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### Skia

skia.org

    Copyright (c) 2011 Google Inc. All rights reserved.

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    --------------------------------------------------------------------------------
    third_party/etc1 is under the following license:

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    --------------------------------------------------------------------------------
    Some files under resources are under the following license:

    Unlimited Commercial Use
    We try to make it clear that you may use all clipart from Openclipart even for unlimited commercial use. We believe that giving away our images is a great way to share with the world our talents and that will come back around in a better form.

    May I Use Openclipart for?
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### HarfBuzz

harfbuzz.org

    HarfBuzz is licensed under the so-called "Old MIT" license.  Details follow.
    For parts of HarfBuzz that are licensed under different licenses see individual
    files names COPYING in subdirectories where applicable.

    Copyright © 2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020  Google, Inc.
    Copyright © 2018,2019,2020  Ebrahim Byagowi
    Copyright © 2019,2020  Facebook, Inc.
    Copyright © 2012  Mozilla Foundation
    Copyright © 2011  Codethink Limited
    Copyright © 2008,2010  Nokia Corporation and/or its subsidiary(-ies)
    Copyright © 2009  Keith Stribley
    Copyright © 2009  Martin Hosken and SIL International
    Copyright © 2007  Chris Wilson
    Copyright © 2006  Behdad Esfahbod
    Copyright © 2005  David Turner
    Copyright © 2004,2007,2008,2009,2010  Red Hat, Inc.
    Copyright © 1998-2004  David Turner and Werner Lemberg

    For full copyright notices consult the individual files in the package.

    Permission is hereby granted, without written agreement and without
    license or royalty fees, to use, copy, modify, and distribute this
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    above copyright notice and the following two paragraphs appear in
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    PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.

### UCDN

    Copyright (C) 2012 Grigori Goronzy

    Permission to use, copy, modify, and/or 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" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

### ICU

site.icu-project.org

    COPYRIGHT AND PERMISSION NOTICE (ICU 58 and later)

    Copyright © 1991-2019 Unicode, Inc. All rights reserved.
    Distributed under the Terms of Use in https://www.unicode.org/copyright.html.

    Permission is hereby granted, free of charge, to any person obtaining
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    WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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    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 these Data Files or Software without prior
    written authorization of the copyright holder.

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

    Third-Party Software Licenses

    This section contains third-party software notices and/or additional
    terms for licensed third-party software components included within ICU
    libraries.

    1. ICU License - ICU 1.8.1 to ICU 57.1

    COPYRIGHT AND PERMISSION NOTICE

    Copyright (c) 1995-2016 International Business Machines Corporation and others
    All rights reserved.

    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, and/or sell copies of the Software, and to permit persons
    to whom the Software is furnished to do so, provided that the above
    copyright notice(s) and this permission notice appear in all copies of
    the Software and that both the above copyright notice(s) and this
    permission notice appear in supporting documentation.

    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 COPYRIGHT HOLDER OR
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    Except as contained in this notice, the name of a copyright holder
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    All trademarks and registered trademarks mentioned herein are the
    property of their respective owners.

    2. Chinese/Japanese Word Break Dictionary Data (cjdict.txt)

     #     The Google Chrome software developed by Google is licensed under
     # the BSD license. Other software included in this distribution is
     # provided under other licenses, as set forth below.
     #
     #  The BSD License
     #  http://opensource.org/licenses/bsd-license.php
     #  Copyright (C) 2006-2008, Google Inc.
     #
     #  All rights reserved.
     #
     #  Redistribution and use in source and binary forms, with or without
     # modification, are permitted provided that the following conditions are met:
     #
     #  Redistributions of source code must retain the above copyright notice,
     # this list of conditions and the following disclaimer.
     #  Redistributions in binary form must reproduce the above
     # copyright notice, this list of conditions and the following
     # disclaimer in the documentation and/or other materials provided with
     # the distribution.
     #  Neither the name of  Google Inc. nor the names of its
     # contributors may be used to endorse or promote products derived from
     # this software without specific prior written permission.
     #
     #
     #  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
     # CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
     # INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     # DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
     # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
     # BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     # LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     #
     #
     #  The word list in cjdict.txt are generated by combining three word lists
     # listed below with further processing for compound word breaking. The
     # frequency is generated with an iterative training against Google web
     # corpora.
     #
     #  * Libtabe (Chinese)
     #    - https://sourceforge.net/project/?group_id=1519
     #    - Its license terms and conditions are shown below.
     #
     #  * IPADIC (Japanese)
     #    - http://chasen.aist-nara.ac.jp/chasen/distribution.html
     #    - Its license terms and conditions are shown below.
     #
     #  ---------COPYING.libtabe ---- BEGIN--------------------
     #
     #  /*
     #   * Copyright (c) 1999 TaBE Project.
     #   * Copyright (c) 1999 Pai-Hsiang Hsiao.
     #   * All rights reserved.
     #   *
     #   * Redistribution and use in source and binary forms, with or without
     #   * modification, are permitted provided that the following conditions
     #   * are met:
     #   *
     #   * . Redistributions of source code must retain the above copyright
     #   *   notice, this list of conditions and the following disclaimer.
     #   * . Redistributions in binary form must reproduce the above copyright
     #   *   notice, this list of conditions and the following disclaimer in
     #   *   the documentation and/or other materials provided with the
     #   *   distribution.
     #   * . Neither the name of the TaBE Project nor the names of its
     #   *   contributors may be used to endorse or promote products derived
     #   *   from this software without specific prior written permission.
     #   *
     #   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     #   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     #   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     #   * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     #   * REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     #   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     #   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     #   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     #   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     #   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     #   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
     #   * OF THE POSSIBILITY OF SUCH DAMAGE.
     #   */
     #
     #  /*
     #   * Copyright (c) 1999 Computer Systems and Communication Lab,
     #   *                    Institute of Information Science, Academia
     #       *                    Sinica. All rights reserved.
     #   *
     #   * Redistribution and use in source and binary forms, with or without
     #   * modification, are permitted provided that the following conditions
     #   * are met:
     #   *
     #   * . Redistributions of source code must retain the above copyright
     #   *   notice, this list of conditions and the following disclaimer.
     #   * . Redistributions in binary form must reproduce the above copyright
     #   *   notice, this list of conditions and the following disclaimer in
     #   *   the documentation and/or other materials provided with the
     #   *   distribution.
     #   * . Neither the name of the Computer Systems and Communication Lab
     #   *   nor the names of its contributors may be used to endorse or
     #   *   promote products derived from this software without specific
     #   *   prior written permission.
     #   *
     #   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     #   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     #   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     #   * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     #   * REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
     #   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     #   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     #   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     #   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     #   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     #   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
     #   * OF THE POSSIBILITY OF SUCH DAMAGE.
     #   */
     #
     #  Copyright 1996 Chih-Hao Tsai @ Beckman Institute,
     #      University of Illinois
     #  c-tsai4@uiuc.edu  http://casper.beckman.uiuc.edu/~c-tsai4
     #
     #  ---------------COPYING.libtabe-----END--------------------------------
     #
     #
     #  ---------------COPYING.ipadic-----BEGIN-------------------------------
     #
     #  Copyright 2000, 2001, 2002, 2003 Nara Institute of Science
     #  and Technology.  All Rights Reserved.
     #
     #  Use, reproduction, and distribution of this software is permitted.
     #  Any copy of this software, whether in its original form or modified,
     #  must include both the above copyright notice and the following
     #  paragraphs.
     #
     #  Nara Institute of Science and Technology (NAIST),
     #  the copyright holders, disclaims all warranties with regard to this
     #  software, including all implied warranties of merchantability and
     #  fitness, in no event shall NAIST be liable for
     #  any special, indirect or consequential damages or any damages
     #  whatsoever resulting from loss of use, data or profits, whether in an
     #  action of contract, negligence or other tortuous action, arising out
     #  of or in connection with the use or performance of this software.
     #
     #  A large portion of the dictionary entries
     #  originate from ICOT Free Software.  The following conditions for ICOT
     #  Free Software applies to the current dictionary as well.
     #
     #  Each User may also freely distribute the Program, whether in its
     #  original form or modified, to any third party or parties, PROVIDED
     #  that the provisions of Section 3 ("NO WARRANTY") will ALWAYS appear
     #  on, or be attached to, the Program, which is distributed substantially
     #  in the same form as set out herein and that such intended
     #  distribution, if actually made, will neither violate or otherwise
     #  contravene any of the laws and regulations of the countries having
     #  jurisdiction over the User or the intended distribution itself.
     #
     #  NO WARRANTY
     #
     #  The program was produced on an experimental basis in the course of the
     #  research and development conducted during the project and is provided
     #  to users as so produced on an experimental basis.  Accordingly, the
     #  program is provided without any warranty whatsoever, whether express,
     #  implied, statutory or otherwise.  The term "warranty" used herein
     #  includes, but is not limited to, any warranty of the quality,
     #  performance, merchantability and fitness for a particular purpose of
     #  the program and the nonexistence of any infringement or violation of
     #  any right of any third party.
     #
     #  Each user of the program will agree and understand, and be deemed to
     #  have agreed and understood, that there is no warranty whatsoever for
     #  the program and, accordingly, the entire risk arising from or
     #  otherwise connected with the program is assumed by the user.
     #
     #  Therefore, neither ICOT, the copyright holder, or any other
     #  organization that participated in or was otherwise related to the
     #  development of the program and their respective officials, directors,
     #  officers and other employees shall be held liable for any and all
     #  damages, including, without limitation, general, special, incidental
     #  and consequential damages, arising out of or otherwise in connection
     #  with the use or inability to use the program or any product, material
     #  or result produced or otherwise obtained by using the program,
     #  regardless of whether they have been advised of, or otherwise had
     #  knowledge of, the possibility of such damages at any time during the
     #  project or thereafter.  Each user will be deemed to have agreed to the
     #  foregoing by his or her commencement of use of the program.  The term
     #  "use" as used herein includes, but is not limited to, the use,
     #  modification, copying and distribution of the program and the
     #  production of secondary products from the program.
     #
     #  In the case where the program, whether in its original form or
     #  modified, was distributed or delivered to or received by a user from
     #  any person, organization or entity other than ICOT, unless it makes or
     #  grants independently of ICOT any specific warranty to the user in
     #  writing, such person, organization or entity, will also be exempted
     #  from and not be held liable to the user for any such damages as noted
     #  above as far as the program is concerned.
     #
     #  ---------------COPYING.ipadic-----END----------------------------------

    3. Lao Word Break Dictionary Data (laodict.txt)

     #  Copyright (c) 2013 International Business Machines Corporation
     #  and others. All Rights Reserved.
     #
     # Project: http://code.google.com/p/lao-dictionary/
     # Dictionary: http://lao-dictionary.googlecode.com/git/Lao-Dictionary.txt
     # License: http://lao-dictionary.googlecode.com/git/Lao-Dictionary-LICENSE.txt
     #              (copied below)
     #
     #  This file is derived from the above dictionary, with slight
     #  modifications.
     #  ----------------------------------------------------------------------
     #  Copyright (C) 2013 Brian Eugene Wilson, Robert Martin Campbell.
     #  All rights reserved.
     #
     #  Redistribution and use in source and binary forms, with or without
     #  modification,
     #  are permitted provided that the following conditions are met:
     #
     #
     # Redistributions of source code must retain the above copyright notice, this
     #  list of conditions and the following disclaimer. Redistributions in
     #  binary form must reproduce the above copyright notice, this list of
     #  conditions and the following disclaimer in the documentation and/or
     #  other materials provided with the distribution.
     #
     #
     # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
     # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
     # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
     # INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     # STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
     # OF THE POSSIBILITY OF SUCH DAMAGE.
     #  --------------------------------------------------------------------------

    4. Burmese Word Break Dictionary Data (burmesedict.txt)

     #  Copyright (c) 2014 International Business Machines Corporation
     #  and others. All Rights Reserved.
     #
     #  This list is part of a project hosted at:
     #    github.com/kanyawtech/myanmar-karen-word-lists
     #
     #  --------------------------------------------------------------------------
     #  Copyright (c) 2013, LeRoy Benjamin Sharon
     #  All rights reserved.
     #
     #  Redistribution and use in source and binary forms, with or without
     #  modification, are permitted provided that the following conditions
     #  are met: Redistributions of source code must retain the above
     #  copyright notice, this list of conditions and the following
     #  disclaimer.  Redistributions in binary form must reproduce the
     #  above copyright notice, this list of conditions and the following
     #  disclaimer in the documentation and/or other materials provided
     #  with the distribution.
     #
     #    Neither the name Myanmar Karen Word Lists, nor the names of its
     #    contributors may be used to endorse or promote products derived
     #    from this software without specific prior written permission.
     #
     #  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
     #  CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
     #  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     #  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     #  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
     #  BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     #  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
     #  TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     #  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
     #  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
     #  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
     #  THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     #  SUCH DAMAGE.
     #  --------------------------------------------------------------------------

    5. Time Zone Database

      ICU uses the public domain data and code derived from Time Zone
    Database for its time zone support. The ownership of the TZ database
    is explained in BCP 175: Procedure for Maintaining the Time Zone
    Database section 7.

     # 7.  Database Ownership
     #
     #    The TZ database itself is not an IETF Contribution or an IETF
     #    document.  Rather it is a pre-existing and regularly updated work
     #    that is in the public domain, and is intended to remain in the
     #    public domain.  Therefore, BCPs 78 [RFC5378] and 79 [RFC3979] do
     #    not apply to the TZ Database or contributions that individuals make
     #    to it.  Should any claims be made and substantiated against the TZ
     #    Database, the organization that is providing the IANA
     #    Considerations defined in this RFC, under the memorandum of
     #    understanding with the IETF, currently ICANN, may act in accordance
     #    with all competent court orders.  No ownership claims will be made
     #    by ICANN or the IETF Trust on the database or the code.  Any person
     #    making a contribution to the database or code waives all rights to
     #    future claims in that contribution or in the TZ Database.

    6. Google double-conversion

    Copyright 2006-2011, the V8 project authors. All rights reserved.
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are
    met:

        * Redistributions of source code must retain the above copyright
          notice, this list of conditions and the following disclaimer.
        * Redistributions in binary form must reproduce the above
          copyright notice, this list of conditions and the following
          disclaimer in the documentation and/or other materials provided
          with the distribution.
        * Neither the name of Google Inc. nor the names of its
          contributors may be used to endorse or promote products derived
          from this software without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

### libjpeg

ijg.org

    This software is based in part on the work of the Independent JPEG Group.

    The authors make NO WARRANTY or representation, either express or implied,
    with respect to this software, its quality, accuracy, merchantability, or
    fitness for a particular purpose.  This software is provided "AS IS", and you,
    its user, assume the entire risk as to its quality and accuracy.

    This software is copyright (C) 1991-2020, Thomas G. Lane, Guido Vollbeding.
    All Rights Reserved except as specified below.

    Permission is hereby granted to use, copy, modify, and distribute this
    software (or portions thereof) for any purpose, without fee, subject to these
    conditions:
    (1) If any part of the source code for this software is distributed, then this
    README file must be included, with this copyright and no-warranty notice
    unaltered; and any additions, deletions, or changes to the original files
    must be clearly indicated in accompanying documentation.
    (2) If only executable code is distributed, then the accompanying
    documentation must state that "this software is based in part on the work of
    the Independent JPEG Group".
    (3) Permission for use of this software is granted only if the user accepts
    full responsibility for any undesirable consequences; the authors accept
    NO LIABILITY for damages of any kind.

    These conditions apply to any software derived from or based on the IJG code,
    not just to the unmodified library.  If you use our work, you ought to
    acknowledge us.

    Permission is NOT granted for the use of any IJG author's name or company name
    in advertising or publicity relating to this software or products derived from
    it.  This software may be referred to only as "the Independent JPEG Group's
    software".

    We specifically permit and encourage the use of this software as the basis of
    commercial products, provided that all warranty or liability claims are
    assumed by the product vendor.

### libpng

libpng.org

    COPYRIGHT NOTICE, DISCLAIMER, and LICENSE
    =========================================

    PNG Reference Library License version 2
    ---------------------------------------

     * Copyright (c) 1995-2019 The PNG Reference Library Authors.
     * Copyright (c) 2018-2019 Cosmin Truta.
     * Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson.
     * Copyright (c) 1996-1997 Andreas Dilger.
     * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.

    The software is supplied "as is", without warranty of any kind,
    express or implied, including, without limitation, the warranties
    of merchantability, fitness for a particular purpose, title, and
    non-infringement.  In no event shall the Copyright owners, or
    anyone distributing the software, be liable for any damages or
    other liability, whether in contract, tort or otherwise, arising
    from, out of, or in connection with the software, or the use or
    other dealings in the software, even if advised of the possibility
    of such damage.

    Permission is hereby granted to use, copy, modify, and distribute
    this software, or portions hereof, for any purpose, without fee,
    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 Copyright notice may not be removed or altered from any
        source or altered source distribution.

    PNG Reference Library License version 1 (for libpng 0.5 through 1.6.35)
    -----------------------------------------------------------------------

    libpng versions 1.0.7, July 1, 2000, through 1.6.35, July 15, 2018 are
    Copyright (c) 2000-2002, 2004, 2006-2018 Glenn Randers-Pehrson, are
    derived from libpng-1.0.6, and are distributed according to the same
    disclaimer and license as libpng-1.0.6 with the following individuals
    added to the list of Contributing Authors:

        Simon-Pierre Cadieux
        Eric S. Raymond
        Mans Rullgard
        Cosmin Truta
        Gilles Vollant
        James Yu
        Mandar Sahastrabuddhe
        Google Inc.
        Vadim Barkov

    and with the following additions to the disclaimer:

        There is no warranty against interference with your enjoyment of
        the library or against infringement.  There is no warranty that our
        efforts or the library will fulfill any of your particular purposes
        or needs.  This library is provided with all faults, and the entire
        risk of satisfactory quality, performance, accuracy, and effort is
        with the user.

    Some files in the "contrib" directory and some configure-generated
    files that are distributed with libpng have other copyright owners, and
    are released under other open source licenses.

    libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
    Copyright (c) 1998-2000 Glenn Randers-Pehrson, are derived from
    libpng-0.96, and are distributed according to the same disclaimer and
    license as libpng-0.96, with the following individuals added to the
    list of Contributing Authors:

        Tom Lane
        Glenn Randers-Pehrson
        Willem van Schaik

    libpng versions 0.89, June 1996, through 0.96, May 1997, are
    Copyright (c) 1996-1997 Andreas Dilger, are derived from libpng-0.88,
    and are distributed according to the same disclaimer and license as
    libpng-0.88, with the following individuals added to the list of
    Contributing Authors:

        John Bowler
        Kevin Bracey
        Sam Bushell
        Magnus Holmgren
        Greg Roelofs
        Tom Tanner

    Some files in the "scripts" directory have other copyright owners,
    but are released under this license.

    libpng versions 0.5, May 1995, through 0.88, January 1996, are
    Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.

    For the purposes of this copyright and license, "Contributing Authors"
    is defined as the following set of individuals:

        Andreas Dilger
        Dave Martindale
        Guy Eric Schalnat
        Paul Schmidt
        Tim Wegner

    The PNG Reference Library is supplied "AS IS".  The Contributing
    Authors and Group 42, Inc. disclaim all warranties, expressed or
    implied, including, without limitation, the warranties of
    merchantability and of fitness for any purpose.  The Contributing
    Authors and Group 42, Inc. assume no liability for direct, indirect,
    incidental, special, exemplary, or consequential damages, which may
    result from the use of the PNG Reference Library, even if advised of
    the possibility of such damage.

    Permission is hereby granted to use, copy, modify, and distribute this
    source code, or portions hereof, for any purpose, without fee, subject
    to the following restrictions:

     1. The origin of this source code must not be misrepresented.

     2. Altered versions must be plainly marked as such and must not
        be misrepresented as being the original source.

     3. This Copyright notice may not be removed or altered from any
        source or altered source distribution.

    The Contributing Authors and Group 42, Inc. specifically permit,
    without fee, and encourage the use of this source code as a component
    to supporting the PNG file format in commercial products.  If you use
    this source code in a product, acknowledgment is not required but would
    be appreciated.

### libwebp

chromium.googlesource.com/webm/libwebp

    Copyright (c) 2010, Google Inc. All rights reserved.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are
    met:

      * Redistributions of source code must retain the above copyright
        notice, this list of conditions and the following disclaimer.

      * Redistributions in binary form must reproduce the above copyright
        notice, this list of conditions and the following disclaimer in
        the documentation and/or other materials provided with the
        distribution.

      * Neither the name of Google nor the names of its contributors may
        be used to endorse or promote products derived from this software
        without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

### sfntly

    Copyright 2011 Google Inc. All Rights Reserved.

    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.

                                     Apache License
                               Version 2.0, January 2004
                            http://www.apache.org/licenses/

       TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

       1. Definitions.

          "License" shall mean the terms and conditions for use, reproduction,
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       APPENDIX: How to apply the Apache License to your work.

          To apply the Apache License to your work, attach the following
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       Copyright 2011 Google Inc. All Rights Reserved.

       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

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       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.

### Anti-Grain Geometry

antigrain.com

    Anti-Grain Geometry - Version 2.4
    Copyright (C) 2002-2005 Maxim Shemanarev (McSeem)

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:

      1. Redistributions of source code must retain the above copyright
         notice, this list of conditions and the following disclaimer.

      2. Redistributions in binary form must reproduce the above copyright
         notice, this list of conditions and the following disclaimer in
         the documentation and/or other materials provided with the
         distribution.

      3. The name of the author may not be used to endorse or promote
         products derived from this software without specific prior
         written permission.

    THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
    INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
    STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
    IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    POSSIBILITY OF SUCH DAMAGE.

### v8

github.com/v8/v8

    This license applies to all parts of V8 that are not externally
    maintained libraries.  The externally maintained libraries used by V8
    are:

      - PCRE test suite, located in
        test/mjsunit/third_party/regexp-pcre/regexp-pcre.js.  This is based on the
        test suite from PCRE-7.3, which is copyrighted by the University
        of Cambridge and Google, Inc.  The copyright notice and license
        are embedded in regexp-pcre.js.

      - Layout tests, located in test/mjsunit/third_party/object-keys.  These are
        based on layout tests from webkit.org which are copyrighted by
        Apple Computer, Inc. and released under a 3-clause BSD license.

      - Strongtalk assembler, the basis of the files assembler-arm-inl.h,
        assembler-arm.cc, assembler-arm.h, assembler-ia32-inl.h,
        assembler-ia32.cc, assembler-ia32.h, assembler-x64-inl.h,
        assembler-x64.cc, assembler-x64.h, assembler-mips-inl.h,
        assembler-mips.cc, assembler-mips.h, assembler.cc and assembler.h.
        This code is copyrighted by Sun Microsystems Inc. and released
        under a 3-clause BSD license.

      - Valgrind client API header, located at src/third_party/valgrind/valgrind.h
        This is released under the BSD license.

      - The Wasm C/C++ API headers, located at third_party/wasm-api/wasm.{h,hh}
        This is released under the Apache license. The API's upstream prototype
        implementation also formed the basis of V8's implementation in
        src/wasm/c-api.cc.

    These libraries have their own licenses; we recommend you read them,
    as their terms may differ from the terms below.

    Further license information can be found in LICENSE files located in
    sub-directories.

    Copyright 2014, the V8 project authors. All rights reserved.
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are
    met:

        * Redistributions of source code must retain the above copyright
          notice, this list of conditions and the following disclaimer.
        * Redistributions in binary form must reproduce the above
          copyright notice, this list of conditions and the following
          disclaimer in the documentation and/or other materials provided
          with the distribution.
        * Neither the name of Google Inc. nor the names of its
          contributors may be used to endorse or promote products derived
          from this software without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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### GIFLIB

giflib.sourceforge.net

    The GIFLIB distribution is Copyright (c) 1997  Eric S. Raymond

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### TinyExpr

github.com/codeplea/tinyexpr

    zlib License

    Copyright (C) 2015, 2016 Lewis Van Winkle

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pdfium.org

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### Expat

expat.sourceforge.net

    Copyright (c) 1998-2000 Thai Open Source Software Center Ltd and Clark Cooper
    Copyright (c) 2001-2019 Expat maintainers

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