[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 elvismdev):

 Thanks all for the continued investigation and context!

 I can confirm that in both environments I've tested, I'm still able to
 consistently reproduce the issue with PNG image quality degradation in WP
 6.8. Below is the full output from Site Health > Media Handling for both:


 == WP Engine (Production Hosting)
 * **Active editor**: WP_Image_Editor_Imagick
 * **ImageMagick version string**: 6.9.11-60 Q16 x86_64
 * **Imagick version**: 3.7.0
 * **ImageMagick version number**: 1691
 * **GD version**: 2.3.0
 * **Ghostscript version**: Not available


 == LocalWP (Local Testing)
 * **Active editor**: WP_Image_Editor_Imagick
 * **ImageMagick version string**: 7.1.0-10 Q16 x86_64
 * **Imagick version**: 3.7.0
 * **ImageMagick version number**: 1808
 * **GD version**: bundled (2.1.0 compatible)
 * **Ghostscript version**: 9.56.1

 Even with the newer ImageMagick version (1808) on LocalWP, I’m still able
 to reproduce the issue there as well.

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Ticket URL: <https://core.trac.wordpress.org/ticket/63448#comment:5>
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