Some changes to pngquant optimizer( Don't force worser quality on bug images)
Some changes to pngquant optimizer( Don't force worser quality on bug images)

TheCodez/sprite-sheet-packer,TheCodez/sprite-sheet-packer,amakaseev/sprite-sheet-packer,TheCodez/sprite-sheet-packer,amakaseev/sprite-sheet-packer,amakaseev/sprite-sheet-packer,amakaseev/sprite-sheet-packer,TheCodez/sprite-sheet-packer