Originally the toga was worn by all Romans; free citizens were required to wear togas. The emperors of Rome wore purple togas, as did the Byzantine emperors. Roman writer Seneca criticized men who wore their togas too loosely or carelessly. This dye colored the purple stripe in Imperial Roman Senatorial togas. They were, however, definitely Roman citizens, since they wore togas inside Rome. The members arrived dressed in Roman togas and caps, in the neoclassical fashion. Thereafter, citizen-soldiers wore togas only for formal occasions. Many of the faces and togas look similar to ancient Roman republican sculptures. Recent trends call for togas and mortarboards as standard graduation attire. Free citizens were required to wear togas. Graduates of vocational schools and colleges usually wear togas and mortarboards or caps. It contains two statues wearing togas, presumably the father and grandfather of the Julii. Different types of togas indicated age, profession, and social rank. The many types of togas were also named.