Customize requires edit_theme_options. If you only have switch_themes (rare, but a case that core supports), you should not have access. fixes #21413. 



git-svn-id: https://core.svn.wordpress.org/trunk@24049 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Add .displaying-header-text to the default themes, as the Custom Header page toggles this class. props obenland, fixes #24113.



git-svn-id: https://core.svn.wordpress.org/trunk@24050 1a063a9b-81f0-0310-95a4-ce76da25c4cd