[wp-trac] [WordPress Trac] #64415: Customizer: body element needs a CSS class for the color scheme

[WordPress Trac]

#64415: Customizer: body element needs a CSS class for the color scheme
--------------------------+-----------------------------
 Reporter:  wildworks     |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Customize     |    Version:
 Severity:  normal        |   Keywords:
  Focuses:                |
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 The dashboard injects CSS classes like `admin-color-{slug}` into the body
 element based on the Admin Color Scheme setting, but the Customizer does
 not.

 Gutenberg has
 [https://github.com/WordPress/gutenberg/blob/6fceeb26c56d8cdbf02052e99f153caee17f3fa6/packages
 /base-styles/_mixins.scss#L532 a mixin] that allows us to apply a color
 scheme to components based on this CSS class.

 As a result, the color scheme is not applied to the command palette in the
 Customizer screen.

 === Steps to Reproduce

 - Go to Users > admin
 - Select any scheme other than the default scheme
 - Activate Twenty Twenty-One
 - Go to Appearance > Customize
 - Launch the Command Palette (Cmd+K on Mac or Ctrl+K on Windows)
 - Type some characters
 - The selected command item has a default (fresh) color

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Ticket URL: <https://core.trac.wordpress.org/ticket/64415>
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