public function post_type_support() {

		/**
		 * Filter the post types that allow layouts.
		 *
		 * @since 1.0.0
		 *
		 * @var array
		 */
		$post_types = (array) apply_filters( 'rock_layouts_post_types', get_post_types( array( 'public' => true ) ) );

		foreach ( $post_types as $post_type ) {

			add_post_type_support( $post_type, 'rock-layouts' );

		}

	}