Themes: Don't set background color for the filter icon.

fixes #28860.

Built from https://develop.svn.wordpress.org/trunk@29124


git-svn-id: http://core.svn.wordpress.org/trunk@28909 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Improvements to the plugin information modal:

* Whitespace/braces cleanup for [29040].
* Reduce width of modal to 792px, which is the default banner size.
* Reduce banner height when screen height is smaller than 500px.
* Remove inline CSS.
* Re-use tab var in JS.
* Encode ampersands in links.

props avryl, michalzuber, ocean90.
see #27440.

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git-svn-id: http://core.svn.wordpress.org/trunk@28910 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE wpView: fix selecting views on click, part props avryl, see #28595
Built from https://develop.svn.wordpress.org/trunk@29126


git-svn-id: http://core.svn.wordpress.org/trunk@28911 1a063a9b-81f0-0310-95a4-ce76da25c4cd
TinyMCE wpView: better handling of the Enter key, props avryl, see #28595
Built from https://develop.svn.wordpress.org/trunk@29127


git-svn-id: http://core.svn.wordpress.org/trunk@28912 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Convert default arguments documentation for `get_terms()` into a hash notation.

See #28841.

Built from https://develop.svn.wordpress.org/trunk@29128


git-svn-id: http://core.svn.wordpress.org/trunk@28913 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add indentation for the hash notation missed in [29128].

See #28841.

Built from https://develop.svn.wordpress.org/trunk@29129


git-svn-id: http://core.svn.wordpress.org/trunk@28914 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Remove unused variable in `wp_dashboard_plugins_output()`. Unused since [26144].

props michalzuber.
see #28872.
Built from https://develop.svn.wordpress.org/trunk@29130


git-svn-id: http://core.svn.wordpress.org/trunk@28915 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Media Grid: Remove CSS transition from inline uploader.

props ericlewis.
fixes #28840.
see #28851.
Built from https://develop.svn.wordpress.org/trunk@29131


git-svn-id: http://core.svn.wordpress.org/trunk@28916 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Customizer: Make screen reader text translatable.

see #27406.
Built from https://develop.svn.wordpress.org/trunk@29132


git-svn-id: http://core.svn.wordpress.org/trunk@28917 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Lists View Switcher: Replace blank image with screen reader text.

props davidakennedy.
fixes #28871.
Built from https://develop.svn.wordpress.org/trunk@29133


git-svn-id: http://core.svn.wordpress.org/trunk@28918 1a063a9b-81f0-0310-95a4-ce76da25c4cd