It seems we don't do that yet...
http://www.libpng.org/pub/png/spec/1.2/PNG-Chunks.html
But we should, and that should help with the png profile dialog we have as well.
It seems we don't do that yet...
http://www.libpng.org/pub/png/spec/1.2/PNG-Chunks.html
But we should, and that should help with the png profile dialog we have as well.