public static function register_post_types() {
		if ( ! post_type_exists( 'popup' ) ) {
			$labels = PUM_Types::post_type_labels( __( 'Popup', 'popup-maker' ), __( 'Popups', 'popup-maker' ) );

			$labels['menu_name'] = __( 'Popup Maker', 'popup-maker' );

			$popup_args = apply_filters( 'popmake_popup_post_type_args', array(
				'labels'              => $labels,
				'public'              => true,
				'publicly_queryable'  => false,
				'query_var'           => false,
				'rewrite'             => false,
				'exclude_from_search' => true,
				'show_in_nav_menus'   => false,
				'show_ui'             => true,
				'menu_icon'           => pum_get_svg_icon( true ),
				'menu_position'       => 20.292892729,
				'supports'            => apply_filters( 'popmake_popup_supports', array(
					'title',
					'editor',
					'revisions',
					'author',
				) ),
				'show_in_rest'        => pum_get_option( 'gutenberg_support_enabled', false ), // Adds support for Gutenberg currently.
			) );

			// Temporary Yoast Fixes
			if ( is_admin() && isset( $_GET['page'] ) && $_GET['page'] === 'wpseo_titles' ) {
				$popup_args['public'] = false;
			}

			register_post_type( 'popup', apply_filters( 'pum_popup_post_type_args', $popup_args ) );
		}

		if ( ! post_type_exists( 'popup_theme' ) ) {
			$labels = PUM_Types::post_type_labels( __( 'Popup Theme', 'popup-maker' ), __( 'Popup Themes', 'popup-maker' ) );

			$labels['all_items'] = __( 'Popup Themes', 'popup-maker' );

			$labels = apply_filters( 'popmake_popup_theme_labels', $labels );

			register_post_type( 'popup_theme', apply_filters( 'popmake_popup_theme_post_type_args', array(
				'labels'            => $labels,
				'show_ui'           => true,
				'show_in_nav_menus' => false,
				'show_in_menu'      => 'edit.php?post_type=popup',
				'show_in_admin_bar' => false,
				'query_var'         => false,
				'rewrite'           => false,
				'supports'          => apply_filters( 'popmake_popup_theme_supports', array(
					'title',
					'revisions',
					'author',
				) ),
			) ) );
		}
	}