 The theatre re-opened, again, on 18 December 1886, this time simply known as the Princess Theatre, with a performance of Gilbert and Sullivan's "The Mikado".When completed, it featured state-of-the-art electrical stage lighting, as well as Australia's first sliding or retractable roof and ceiling which provided ventilation from the auditorium.The marble staircase and grand foyers were hailed as equal to that of the Paris Opera, the Frankfurt Stadt and the Grand in Bordeaux.