libpng - libpng License
https://github.com/glennrp/libpng
Version: 1.6.54

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

PNG Reference Library License version 2
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Copyright (c) 1995-2026 The PNG Reference Library Authors.
Copyright (c) 2018-2026 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 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.

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.
