Customize Upload Control Class.

Refresh the parameters passed to the JavaScript via JSON.

Converts a relative URL to an absolute URL relative to a given URL.

Serves as a utility function to determine whether a key exists in the cache.

Gets the number of layout columns the user has selected.

Gets the content from a contextual help sidebar.

Gets the arguments for a help tab.

Gets the help tabs registered for the screen.

Initialize the class.

WP_Theme Class