[wp-trac] [WordPress Trac] #28794: Use reusable OOCSS for the filter bar on the Add Themes page

[WordPress Trac]

#28794: Use reusable OOCSS for the filter bar on the Add Themes page
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 Reporter:  paulwilde    |      Owner:
     Type:  enhancement  |     Status:  new
 Priority:  normal       |  Milestone:  Awaiting Review
Component:  Themes       |    Version:  trunk
 Severity:  normal       |   Keywords:
  Focuses:               |
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 The attached patch refactors `.theme-navigation` to use a generic `.wp-
 filter` for all CSS selectors/JS hooks on the Add Themes page to increase
 reusability such as for use with the media grid in 4.0 rather than having
 to duplicate the styling.

 I've also added a reusable `.wp-title-count` inside common.css which shows
 a count of themes used on wp-admin/themes.php.

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Ticket URL: <https://core.trac.wordpress.org/ticket/28794>
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