untrusted comment: verify with /etc/ports/opt.pub
RWSE3ohX2g5d/SmJvGOIIDBS8raExnvtzt0B8iWmtDMIqKW/yHdCyFeFtwJOrrZyMSjWMMCcy6wQS6qXHDE4giDBVSAd/a07AgA=
SHA256 (Pkgfile) = ae776aa45596186aeffa103823d4d6533625ea416d7ebb225d6f770304314ab7
SHA256 (.footprint) = efa09aa52158eb07ff38fcb3cc079ae2418456b8ed91886c780028851f979191
SHA256 (libpng-1.6.58.tar.xz) = 28eb403f51f0f7405249132cecfe82ea5c0ef97f1b32c5a65828814ae0d34775
SHA256 (libpng-1.6.57-apng-v2.patch) = 0261f0c5c18b9b27d2a88d3fd3e19ee83e38974124fd7bb5bdefe5bdc2d3f536