THIRD-PARTY LICENSES
====================

Sketchr
Copyright (c) 2026 Castagnier Mickael (gullradriel). All rights reserved.
SPDX-License-Identifier: LicenseRef-Proprietary

Sketchr itself is proprietary; see LICENSE. It incorporates the third-party
components listed below, each under its own license. The full text of every
license follows, reproduced verbatim from the component's own license file.

This inventory was produced by inspecting what the build actually compiles,
links and ships - the SRC list and link lines in the Makefile, the #include
graph under src/, the vendored trees, and the files staged into each package.


COPYLEFT REVIEW
---------------

No component listed below is under a copyleft license that would conflict
with distributing Sketchr as closed source. Nothing here is legal advice;
this section records what the inspection found.

Two items were examined closely and both are clear:

  - nilorea-library, which supplies 21,001 lines compiled straight into the
    Sketchr binary, is Apache-2.0. It carries a NOTICE file, so Apache-2.0
    section 4(d) requires Sketchr to reproduce those attribution notices;
    that is done in section 1 below. Apache-2.0 section 4(b) also requires
    modified files to be marked as changed - Sketchr does not modify any
    nilorea source, it compiles them as-is.

  - FreeType is dual-licensed FTL / GPLv2 and the user must elect exactly
    one. Sketchr elects the FTL, which permits proprietary use. Its credit
    obligation is satisfied by this file. This election must not be switched
    to the GPLv2 alternative.

One near-miss worth recording so it is not rediscovered later: the DejaVu
fonts ship with a Debian-format copyright file that contains a GPL-2+
stanza. That stanza covers the Debian *packaging scripts* only. Sketchr
ships the .ttf files and none of that packaging, so it does not apply. See
section 5.


SUMMARY
-------

  Component        License                    How it reaches a build
  ---------------  -------------------------  ------------------------------
  nilorea-library  Apache-2.0                 compiled into the binary
  MurmurHash3      Public domain              inside nilorea's n_hash.c
  cJSON            MIT                        compiled into the binary
  Allegro 5        zlib                       linked; Java classes in the APK
  DejaVu fonts     Bitstream Vera             shipped in assets/fonts/
  FreeType         FTL (or GPLv2; FTL taken)  static on Android/WASM
  libogg           BSD-3-Clause               static on Android/WASM
  libvorbis        BSD-3-Clause               static on Android/WASM

  All permissive; none conflicts with closed-source distribution.

Build-time only, not distributed and therefore requiring no notice here:
bundletool 1.18.3 (Apache-2.0, vendored as bundletool-all-1.18.3.jar and used
to assemble the AAB), the Android SDK/NDK toolchain, Emscripten, cppcheck,
clang-format and doxygen.

Provided by the platform, dynamically linked and not redistributed by
Sketchr: libX11, zlib (-lz), libm, libpthread, ws2_32 (Windows), and the
Android system libraries (android, log, OpenSLES, EGL, GLESv2).



============================================================================
1. nilorea-library
============================================================================

License: Apache-2.0

Copyright (C) 2005-2026 Castagnier Mickael
https://github.com/gullradriel/nilorea-library

Incorporation: n_common.c, n_log.c, n_str.c, n_list.c, n_hash.c,
n_time.c, n_allegro5.c, n_clipboard.c and n_gui.c are compiled
directly into the Sketchr binary on every platform (21,001 lines).
n_gui.c alone is the entire GUI toolkit Sketchr draws its interface
with. This is not a linked library: the sources are pulled in via
VPATH and become part of the executable.

Sketchr does not modify these sources; they are compiled as-is from
the NILOREA_DIR checkout.

nilorea-library ships a NOTICE file. Section 4(d) of the Apache
License obliges any redistribution of the work or a derivative of
it to carry those attribution notices, so nilorea-library's NOTICE
is reproduced in full immediately after the license text below.

Only part of that NOTICE describes code that reaches a Sketchr
build. Of the components it lists, Sketchr compiles in cJSON
(section 2 of this file) and MurmurHash3 inside n_hash.c
(section 3). The zlib, lz4 and librdkafka components, the routines
in n_network.c, and the valgrind suppression file belong to parts
of nilorea-library that Sketchr does not compile, link, or ship.

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


                                 Apache License
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----------------------------------------------------------------------------
nilorea-library NOTICE file, reproduced in full as required by
section 4(d) of the Apache License, Version 2.0
----------------------------------------------------------------------------

Nilorea Library
Copyright (c) 2005-2026 Castagnier Mickael

This product includes software developed by Castagnier Mickael.

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.


Third-party components
----------------------

This repository vendors third-party code under the external/ directory.
Those components are NOT covered by the Apache License, Version 2.0, and
remain under their own upstream licenses:

  external/zlib/
      zlib license.
      Copyright (C) 1995-2022 Jean-loup Gailly and Mark Adler.
      See external/zlib/LICENSE.

  external/lz4/
      Dual licensed. The block codec built into this library
      (external/lz4/lib/lz4.c) is BSD 2-Clause.
      Copyright (c) 2011-2020, Yann Collet.
      See external/lz4/lib/LICENSE.
      The external/lz4/programs/, external/lz4/examples/ and
      external/lz4/tests/ directories are GPL-2.0-or-later. They are
      redistributed here as part of the upstream import but are not
      compiled into, or linked against, this library.
      See external/lz4/LICENSE and the COPYING file in each directory.

  external/cJSON/ and examples/cJSON.c, examples/cJSON.h
      MIT license.
      Copyright (c) 2009-2017 Dave Gamble and cJSON contributors.
      See external/cJSON/LICENSE.
      The bundled test framework external/cJSON/tests/unity/ is MIT,
      Copyright (c) 2007-14 Mike Karlesky, Mark VanderVoord, Greg Williams.

  external/librdkafka/
      BSD 2-Clause.
      Copyright (c) 2012-2022, Magnus Edenhill; 2023, Confluent Inc.
      See external/librdkafka/LICENSE. This component bundles further
      third-party code under additional licenses; the full list is in
      external/librdkafka/LICENSES.txt.

examples/valgrind-suppressions.cfg is derived from the MySQL/glibc valgrind
suppression set and remains under the GNU Library General Public License,
version 2.
      Copyright (c) 2005, 2011, Oracle and/or its affiliates.
      Copyright (c) 2008-2011, Monty Program Ab.
It is a diagnostic configuration file for valgrind. It is not compiled into,
linked against, or distributed as part of this library.

src/n_hash.c contains MurmurHash3, written by Austin Appleby and placed in
the public domain by its author.

src/n_network.c incorporates small, separately licensed routines that
retain their original notices in place: the inet_pton / inet_ntop
fallbacks used on MinGW, under the ISC license (Copyright (c) 2004 by
Internet Systems Consortium, Inc.; Copyright (c) 1996-1999 by Internet
Software Consortium), a routine derived from curl (Copyright (C) 1998 -
2019, Daniel Stenberg, et al.), and a strlcpy implementation (Copyright
(c) 1998 Todd C. Miller). Those notices are kept verbatim in place.


============================================================================
2. MurmurHash3 (inside nilorea-library's n_hash.c)
============================================================================

License: Public domain

Written by Austin Appleby and placed in the public domain by its
author, as recorded in nilorea-library's NOTICE.

Incorporation: n_hash.c is one of the nilorea sources compiled into
the Sketchr binary, so MurmurHash3 ships inside every Sketchr
build. Listed separately here because it is not covered by
nilorea-library's Apache-2.0 grant.

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

MurmurHash3 was written by Austin Appleby, and is placed in the public
domain. The author hereby disclaims copyright to this source code.


============================================================================
3. cJSON
============================================================================

License: MIT

Copyright (c) 2009-2017 Dave Gamble and cJSON contributors
https://github.com/DaveGamble/cJSON

Incorporation: cJSON.c is compiled into the Sketchr binary
(-DHAVE_CJSON) and backs n_gui's JSON GUI-layout persistence.
Vendored inside nilorea-library at external/cJSON.

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

Copyright (c) 2009-2017 Dave Gamble and cJSON contributors

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.


============================================================================
4. Allegro 5
============================================================================

License: zlib

Copyright (c) 2004-2024 the Allegro 5 Development Team
https://liballeg.org/

Incorporation: dynamically linked on Linux and Windows
(allegro, allegro_image, allegro_primitives, allegro_font,
allegro_ttf, allegro_memfile, allegro_color, allegro_dialog,
allegro_acodec, allegro_audio, allegro_main). Statically linked as
the Allegro monolith on Android and WebAssembly. The Android build
also redistributes Allegro's Java classes in classes.dex, including
the patched copy of AllegroActivity.java at the repository root
(790 lines, 39 lines changed from upstream) - that file is Allegro
code under this same zlib license, not Sketchr code.

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

Copyright (c) 2004-2024 the Allegro 5 Development Team

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.

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

Allegro includes some files from bstrlib under the following terms.
<http://bstring.sourceforge.net/>

Copyright (c) 2002-2008 Paul Hsieh
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 bstrlib 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.

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

Allegro includes the following files originally based on SDL 2.0.0:

- src/macosx/osxclipboard.c
- src/win/wclipboard.c
- src/x/xclipboard.c

These files are licensed under the under the following terms:

  Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>

  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.

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

Some Allegro examples use a font from DejaVu fonts, their license can
be found here:
<http://dejavu-fonts.org/wiki/index.php?title=License>

Some Allegro examples use a font from NotoColorEmoji fonts, their license can
be found here:
<https://fonts.google.com/noto/specimen/Noto+Color+Emoji/license>

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

The Cosmic Protector demo game graphics were made by Tony Huisman, and are
included under a Creative Commons BY Attribution license. The music in Cosmic
Protector was purchased from a royalty free website and should not be used
outside the game.


============================================================================
5. DejaVu fonts
============================================================================

License: Bitstream Vera Fonts License / public-domain changes

Copyright (c) 2003 by Bitstream, Inc. All Rights Reserved.
Bitstream Vera is a trademark of Bitstream, Inc.
DejaVu changes are in public domain.
https://dejavu-fonts.github.io/

Incorporation: DejaVuSans.ttf, DejaVuSans-Bold.ttf,
DejaVuSansMono.ttf and DejaVuSerif.ttf ship verbatim in
assets/fonts/ inside every package (deb, AppImage, Windows
installer, APK/AAB, and the WASM preload bundle).

Note on the text below: it is upstream's Debian-format copyright
file, and it carries two stanzas. "Files: *" covers the font files
themselves under the permissive Bitstream Vera license - that is
the stanza that applies to Sketchr. "Files: debian/*" places the
Debian *packaging scripts* under GPL-2+; Sketchr ships only the
.ttf files and none of that packaging, so the GPL-2+ stanza does
not reach anything Sketchr distributes.

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

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: DejaVu fonts
Upstream-Author: Stepan Roh <src@users.sourceforge.net> (original author),
                  see /usr/share/doc/fonts-dejavu-core/AUTHORS for full list
Source: https://dejavu-fonts.github.io/

Files: *
Copyright: Copyright (c) 2003 by Bitstream, Inc. All Rights Reserved. 
 Bitstream Vera is a trademark of Bitstream, Inc.
 DejaVu changes are in public domain.
License: bitstream-vera
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of the fonts accompanying this license ("Fonts") and associated
 documentation files (the "Font Software"), to reproduce and distribute the
 Font Software, including without limitation the rights to use, copy, merge,
 publish, distribute, and/or sell copies of the Font Software, and to permit
 persons to whom the Font Software is furnished to do so, subject to the
 following conditions:
 .
 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.
 .
 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 USE THE FONT SOFTWARE OR FROM OTHER DEALINGS IN THE
 FONT SOFTWARE.
 .
 Except as contained in this notice, the names of Gnome, the Gnome
 Foundation, and Bitstream Inc., shall not be used in advertising or
 otherwise to promote the sale, use or other dealings in this Font Software
 without prior written authorization from the Gnome Foundation or Bitstream
 Inc., respectively. For further information, contact: fonts at gnome dot
 org.

Files: debian/*
Copyright: (C) 2005-2006 Peter Cernak <pce@users.sourceforge.net> 
           (C) 2006-2011 Davide Viti <zinosat@tiscali.it>
           (C) 2011-2013 Christian Perrier <bubulle@debian.org>
           (C) 2013 Fabian Greffrath <fabian+debian@greffrath.com>
License: GPL-2+
 This program is free software; you can redistribute it
 and/or modify it under the terms of the GNU General Public
 License as published by the Free Software Foundation; either
 version 2 of the License, or (at your option) any later
 version.
 .
 This program is distributed in the hope that it will be
 useful, but WITHOUT ANY WARRANTY; without even the implied
 warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 PURPOSE.  See the GNU General Public License for more
 details.
 .
 You should have received a copy of the GNU General Public
 License along with this package; if not, write to the Free
 Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 Boston, MA  02110-1301 USA
 .
 On Debian systems, the full text of the GNU General Public
 License version 2 can be found in the file
 /usr/share/common-licenses/GPL-2'.


============================================================================
6. FreeType
============================================================================

License: FTL (FreeType License) - elected over the GPLv2 alternative

Copyright (c) 1996-2024 David Turner, Robert Wilhelm, and Werner Lemberg
https://freetype.org/

Incorporation: statically linked (libfreetype.a) into the Android
and WebAssembly builds, behind Allegro's TTF addon. On Linux and
Windows it is reached through the system Allegro and is not
redistributed by Sketchr.

FreeType is dual-licensed under the FTL and GPLv2, and the user
must elect exactly one. Sketchr elects the FTL, which permits
proprietary use. The FTL carries a credit obligation: the FreeType
project must be cited in the product documentation. This file,
shipped with every package, satisfies it. Do not elect the GPLv2
alternative - it would be incompatible with closed-source
distribution.

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

                    The FreeType Project LICENSE
                    ----------------------------

                            2006-Jan-27

                    Copyright 1996-2002, 2006 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.


  Finally,  many  people  asked  us  for  a  preferred  form  for  a
  credit/disclaimer to use in compliance with this license.  We thus
  encourage you to use the following text:

   """
    Portions of this software are copyright © <year> The FreeType
    Project (https://freetype.org).  All rights reserved.
   """

  Please replace <year> with the value from the FreeType version you
  actually use.


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
      (`FTL.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@nongnu.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 freetype-devel@nongnu.org

      Discusses bugs,  as well  as engine internals,  design issues,
      specific licenses, porting, etc.

  Our home page can be found at

    https://freetype.org


--- end of FTL.TXT ---


============================================================================
7. libogg
============================================================================

License: BSD-3-Clause

Copyright (c) 2002, Xiph.org Foundation
https://xiph.org/ogg/

Incorporation: statically linked (libogg.a) into the Android and
WebAssembly builds. Sketchr plays no audio, but the Allegro
monolith is built with the acodec/vorbis addons, so the symbols
must resolve at link time.

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

Copyright (c) 2002, Xiph.org Foundation

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 Xiph.org Foundation 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 FOUNDATION
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.


============================================================================
8. libvorbis
============================================================================

License: BSD-3-Clause

Copyright (c) 2002-2020 Xiph.org Foundation
https://xiph.org/vorbis/

Incorporation: statically linked (libvorbis.a, libvorbisfile.a,
libvorbisenc.a) into the Android and WebAssembly builds, for the
same acodec link-time reason as libogg.

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

Copyright (c) 2002-2020 Xiph.org Foundation

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 Xiph.org Foundation 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 FOUNDATION
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.
