c function ( $item ) {
				return preg_quote( $item, '/' );
			},
			$items_array
		);
	}
}
otice if the used CSS folder is not writable
	 *
	 * @since 3.11.4
	 *
	 * @return void
	 */
	public function notice_write_permissions() {
		$this->used_css->notice_write_permissions();
	}

	/**
	 * Display a notice on table missing.
	 *
	 * @return void
	 */
	public function display_no_table_notice() {
		$this->settings->display_no_table_notice();
	}

	/**
	 * Checks if the RUCSS deletion is enabled.
	 *
	 * @return bool
	 */
	protected function is_deletion_enabled(): bool {
		/**
		 * Filters the enable RUCSS deletion value
		 *
		 * @param bool $delete_rucss True to enable deletion, false otherwise.
		 */
		return (bool) apply_filters( 'rocket_rucss_deletion_enabled', true );
	}
}