Re: GM loses transparency on some grayscale PNG images?

Thanks Bob, I'll reach out to my contacts at Automattic and see if they can
shed any light on what happened there.
Really appreciate all that you do, wish I had the skills to help fix such
things!

On Wed, Sep 18, 2019 at 9:10 AM Bob Friesenhahn <
[email protected]> wrote:

> On Wed, 18 Sep 2019, Shane Bishop wrote:
>
> > Hi,
> > I was checking the WordPress Photon changelog and stumbled across this
> > tidbit:
> > https://code.trac.wordpress.org/changeset/488
> >
> > We use a fork of their API in one of our products, and so I was curious
> to
> > find out more, and see if perhaps the bug had been reported to GM, but
> > couldn't find anything online about it (and they've removed the 2 linked
> > issues).
> > Any idea what this is about? Is it a known issue, or was it fixed at some
> > point recently?
>
> I am not aware of any fixes.  The author and maintainer of the PNG
> module (Glenn Randers-Pehrson) died in October of 2018 after a long
> illness.  Contribution to the project is at an all-time low and it
> seems that many people are interested in searching for bugs, and
> reporting bugs, but not so interested in investigating the bugs and
> submitting fixes for them.
>
> I have made many fixes to the PNG module, but mostly to address
> security issues discovered by oss-fuzz or independent security
> researchers.
>
> If a bug report is opened at SourceForge and a problematic PNG is
> attached (carefully wrapped in a zip file because SourceForge
> re-writes uploaded PNGs!) then I may be able to look at it as time
> permits.  The fix may be trivial once the problem is identified.
>
> This project is entirely developed and maintained by unpaid volunteers
> who give of their spare time outside of their normal working hours.
> In the past year, that has almost entirely been me.  Assistance from
> new volunteers would be greatly appreciated.
>
> Bob
> --
> Bob Friesenhahn
> [email protected], http://www.simplesystems.org/users/bfriesen/
> GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
> Public Key,     http://www.simplesystems.org/users/bfriesen/public-key.txt
>
>
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