[wp-trac] [WordPress Trac] #55962: Upgrade `sanitize_hex_color()` to CSS Color Level 4

[WordPress Trac]

#55962: Upgrade `sanitize_hex_color()` to CSS Color Level 4
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 Reporter:  anrghg                               |       Owner:  pbearne
     Type:  enhancement                          |      Status:  assigned
 Priority:  normal                               |   Milestone:  Future
                                                 |  Release
Component:  Formatting                           |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  dev-feedback has-patch has-unit-     |     Focuses:  css
  tests                                          |
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Changes (by pbearne):

 * owner:  (none) => pbearne
 * status:  new => assigned


Comment:

 I Have created a patch for this with tests

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Ticket URL: <https://core.trac.wordpress.org/ticket/55962#comment:11>
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