(?:`)?(?:png`reference`library`license`version`2)?(?:`)?(?:`)?(?:(?:^\-*$))?(?:`)?(?:.{,5000})`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`even`shall`the`copyright`holders,`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:`(?:.{,20})`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`acknowledgement`in`the`product`documentation`would`be`appreciated,`but`is`not`required\.`(?:.{,20})altered`source`versions`must`be`plainly`marked`as`such,`and`must`not`be`misrepresented`as`being`the`original`software\.`(?:.{,20})this`copyright`notice`may`not`be`removed`or`altered`from`any`source`or`altered`source`distribution\.