[wp-trac] [WordPress Trac] #32970: Site Icon (settings): accessibility improvements

[WordPress Trac]

#32970: Site Icon (settings): accessibility improvements
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 Reporter:  afercia         |       Owner:
     Type:  defect (bug)    |      Status:  new
 Priority:  normal          |   Milestone:  Awaiting Review
Component:  Administration  |     Version:  trunk
 Severity:  normal          |  Resolution:
 Keywords:                  |     Focuses:  accessibility
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Comment (by afercia):

 In the proposed patch:
 - proper headings hierarchy (should we review the new "Preview" H2
 styling? See screenshot below)
 - improve images alt attributes (open to suggestions for better strings)
 and add missing one
 - remove redundant orphaned label
 - remove button labels: though buttons can have labels, we can just use
 `aria-label` and `aria-describedby`

 [[Image(https://cldup.com/rerQ9OxMOT.png)]]

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Ticket URL: <https://core.trac.wordpress.org/ticket/32970#comment:1>
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