[wp-trac] [WordPress Trac] #63448: Image quality significantly degrades for resized PNGs with transparency in WordPress 6.8.1

[WordPress Trac]

#63448: Image quality significantly degrades for resized PNGs with transparency in
WordPress 6.8.1
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 Reporter:  elvismdev     |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  6.8.2
Component:  Media         |     Version:  6.8
 Severity:  major         |  Resolution:
 Keywords:                |     Focuses:
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Comment (by SirLouen):

 Replying to [comment:3 wildworks]:
 > Fortunately, however, I was able to reproduce the problem in wordpress-
 develop, so it should be easy to identify the commit that caused the
 problem.

 A good test could be simply updating imagemagick library in `wordpress-
 develop` to match LocalWP and retest. If you cannot reproduce it, then
 it's a problem of imagemagick for certain versions, not sure if you could
 do much in this regard. I bet it has something to do with 6.9 version of
 Imagick.

 The difficulty is that upgrading this library in `wordpress-develop`/`wp-
 env` is not trivial at all.

 The only cue we have is that the OP also reports the same version

 `ImageMagick version: 6.9.11-60 Q16 x86_64` == 1691

 I'm going to ask the reporter of #63338

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Ticket URL: <https://core.trac.wordpress.org/ticket/63448#comment:4>
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