Custom_Background::init()

68	public function init() {69		$page = add_theme_page(70			_x( 'Background', 'custom background' ),71			_x( 'Background', 'custom background' ),72			'edit_theme_options',73			'custom-background',74			array( $this, 'admin_page' )75		);76 77		if ( ! $page ) {78			return;79		}80 81		add_action( "load-{$page}", array( $this, 'admin_load' ) );82		add_action( "load-{$page}", array( $this, 'take_action' ), 49 );83		add_action( "load-{$page}", array( $this, 'handle_upload' ), 49 );84 85		if ( $this->admin_header_callback ) {86			add_action( "admin_head-{$page}", $this->admin_header_callback, 51 );87		}88	}