public static function tabs() {
		static $tabs;

		if ( ! isset( $tabs ) ) {
			$tabs = apply_filters(
				'pum_tools_tabs',
				array(
					'betas'            => __( 'Beta Versions', 'popup-maker' ),
					'error_log'        => __( 'Error Log', 'popup-maker' ),
					'action_scheduler' => __( 'Scheduled Actions', 'popup-maker' ),
					'import'           => __( 'Import / Export', 'popup-maker' ),
				)
			);

			/** @deprecated 1.7.0 */
			$tabs = apply_filters( 'popmake_tools_tabs', $tabs );
		}

		return $tabs;
	}