Add Your Own Setting to the Customizer
Adds a "Site extras" section to Appearance > Customize with a footer note and a contact phone field that preview live, and makes them available with a [site_extra] shortcode, as a pattern for your own settings.
Snippet Library
Developer snippets for WordPress
Snippets for developers: debugging helpers, custom cron schedules, body classes, REST API tweaks and admin tools for checking hooks and queries. Building blocks for people who write code for WordPress every day.
Register Extra Menu Locations
Adds new menu locations, such as a footer menu and a legal links menu, that you can assign under Appearance > Menus and print with wp_nav_menu() in a classic theme.
Show PHP Version, Memory and Queries in the Admin Footer
Replaces the WordPress version in the bottom right of admin screens with the PHP version, peak memory use and database query count of the current page.
Show the Admin Screen ID in the Footer
Displays the current screen ID, base, post type and hook suffix in the admin footer for administrators, which is exactly what you need when targeting a screen in your own code.