Function: Registers an admin color scheme css file.

Function: Registers the default admin color schemes.

Function: Displays the URL of a WordPress admin CSS file.

Function: Displays site icon meta tags.

Function: Prints resource hints to browsers for pre-fetching, pre-rendering and pre-connecting to web sites.

Function: Retrieves a list of unique hosts of all enqueued scripts and styles.

Function: Determines whether the user can access the visual editor.

Function: Finds out which editor should be displayed by default.

Function: Renders an editor.

Function: Outputs the editor scripts, stylesheets, and default settings.