[wp-trac] [WordPress Trac] #43896: Several flex and grid CSS properties listed as Unknown property in Customizer

[WordPress Trac]

#43896: Several flex and grid CSS properties listed as Unknown property in
Customizer
---------------------------+-------------------------
 Reporter:  davidjlaietta  |       Owner:  (none)
     Type:  defect (bug)   |      Status:  closed
 Priority:  normal         |   Milestone:
Component:  Customize      |     Version:  4.9
 Severity:  normal         |  Resolution:  worksforme
 Keywords:  has-patch      |     Focuses:  css
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Changes (by sabernhardt):

 * type:  enhancement => defect (bug)
 * resolution:  wontfix => worksforme
 * milestone:  Future Release =>


Comment:

 @SirLouen The Customizer is still a very important part of 'classic'
 themes, and people should use the Additional CSS panel for custom styles
 if they do not create their own stylesheet (in a child theme or plugin).

 The [https://wordpress.slack.com/archives/C02RQBWTW/p1750864549714729
 proposal] recommending a 'maintenance' mode is not even published yet, and
 that should only limit how much will be //improved// in Customize and
 similar Core Trac components.

 This ticket reported a bug that existed years ago, but I do not experience
 any errors now with the mentioned properties. It seems to have been fixed
 in WordPress 5.4.

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Ticket URL: <https://core.trac.wordpress.org/ticket/43896#comment:8>
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