[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:
                                                 |  adamsilverstein
     Type:  defect (bug)                         |      Status:  reopened
 Priority:  normal                               |   Milestone:  6.8.2
Component:  Media                                |     Version:  6.8
 Severity:  critical                             |  Resolution:
 Keywords:  has-patch has-test-info dev-         |     Focuses:
  feedback has-unit-tests commit fixed-major     |
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Comment (by adamsilverstein):

 > I would be inclined to just change the line $this->image->setOption(
 'png:format', 'png8' ) to use quantizeImage instead, and then simply not
 worry about the issue with the test8.png image (i.e., just remove that
 test from the test suite). I just think that it's a pretty marginal edge
 case issue


 That makes sense to me if `test8.png` is truly an edge case image and all
 other issues are resolved with this approach. Curious to hear what others
 on the threat feel about this.

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Ticket URL: <https://core.trac.wordpress.org/ticket/63448#comment:65>
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