Extras:OptiPNG

===Credits for OptiPNG===
Copyright (C) 2001-2017 Cosmin Truța and the Contributing Authors.
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 redistribute it freely, subject to the following restrictions:
# 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.
# Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
# This notice may not be removed or altered from any source distribution.
====Contributors====
* Aaron Reitz
* Adam Ciarcinski - NetBSD packaging
* Adam Jackson
* Adam Szojda
* Alexander Lucas
* André Costa
* Bill Koch
* Brian McQuade
* Christian Davideck
* Christopher Wichura
* Dimitri Papadopoulos
* Dmitri Zubko
* Dmitry Egorov
* Dmitry Marakasov
* Elias Pipping
* Emmanuel Bouthenot - Current Debian packaging
* Evgeny Brednya - Original OS/2 port
* Fabien Barbier
* Frederic Cambus - Current OpenBSD packaging
* Fredrik Wikström - Original Amiga port
* Friedrich Preuss
* Gustavo Grieco
* Gynvael Coldwind
* Hans Jerry Illikainen
* Henri Salo
* Jaeeung Choi
* James H. Cloos, Jr.
* Joachim Kluge
* John Sauter
* Joonun Jang
* Kyle Isom - Original OpenBSD packaging
* Larry Hastings
* Maciej Pilichowski
* Marcin Kornas - Current Amiga port
* Martin Packman
* Mateusz Jurczyk
* Matthew Fearnley
* Max Horn - Fink packaging
* Mentore Siesto - Current OS/2 port
* Michael Koloberdin - Alpine packaging
* Michael Krishtopa
* Nehal Mistry
* Nelson A. de Oliveira - Original Debian packaging
* Nicolas Le Gland
* Niels de Koning
* Oleg O. Chukaev - Slackware packaging
* Oliver Schneider
* Otto Kekäläinen
* Peter Hanecak - Fedora packaging
* Peter Robinson
* Petr Gajdos
* Piotr Bandurski - Current Amiga port
* Priit Laes
* Ramona C. Truța
* Roy Tam
* Stefan Brüns
* Thomas Hurst - FreeBSD packaging
* Ville Skyttä
* Vincent Lefèvre
* Vitaly Lipatov - ALT Sisyphus packaging
* Yuen Ho Wong
Category:Extras