[wp-trac] [WordPress Trac] #63012: Bundled themes: Stylesheets should be minified

[WordPress Trac]

#63012: Bundled themes: Stylesheets should be minified
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 Reporter:  westonruter    |       Owner:  (none)
     Type:  defect (bug)   |      Status:  new
 Priority:  normal         |   Milestone:  6.9
Component:  Bundled Theme  |     Version:
 Severity:  normal         |  Resolution:
 Keywords:                 |     Focuses:  css, performance
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Comment (by westonruter):

 @poena This is about using the same build process as core already has for
 minifying CSS files, but just extending it to bundled themes where
 currently core is just minifying CSS in `wp-admin` and `wp-includes`. By
 using a development version of WordPress, do you mean running from `src`
 without doing a build? This would still be supported since with
 `SCRIPT_DEBUG` the non-minified files would be used, thus not
 necessitating doing a build (via core's existing `grunt build`).

 The minified CSS files would be built with WordPress, and the static files
 would be shipped with the themes. There would not be any dynamic
 minification process, so there's no back-compat issue.

 You can see an example of the scope of changes, specifically for Twenty
 Twenty-Two and Twenty Twenty-Five in this [https://github.com/WordPress
 /wordpress-develop/pull/8396 PR] for #63007. The scope of changes for that
 ticket is primarily about being able to inline the small `style.css` files
 (the addition of the calls to `wp_style_add_data()` in the PR), but
 minification is included there because there is a limit to the amount of
 CSS that can be inlined.

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Ticket URL: <https://core.trac.wordpress.org/ticket/63012#comment:4>
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