Titan - Titan Battle Colours: Like the Space Marines of the Adeptus Astartes, each Titan Legion or Titan Order has its own complex system of heraldry. These are closely tied to the Legio's history and victories, as well as their homeworld of origin, and are often the embodiment of the individual Legio's personality and collective character.Over the Imperium's history the Titan Legions have changed their colours and patterns, but less than might be supposed. Tradition and pride run deep in every Legio. Even the colours of the ancient Legio Titanicus were kept and transferred to their successor Legios during the Horus Heresy and the subsequent Great Scouring. During the time of the Horus Heresy, the Legios and the newly forming Orders retained their colours as more than a mark of each Order, the colours became badges of loyalty to the Emperor or to Warmaster Horus.Each Order of Titans has its own emblem and colours. For example, the colours of the Divisio Militaris Order of the Legio Ignatum are red and gold; all its Titans are painted in these two colours. Its emblem, of a wasp in a blue-bordered white triangle, is painted on the carapace of each of its Titans, and each has the banner of the Collegia Titanica's Divisio Militaris mounted on its carapace. On the lower fairing of each leg -- so as to be visible to ground troops -- is the Titan's class symbol. Each Titan has its own personal princeps honour banner or "victory banner," hanging from its "waist". This bears the badge of the Legio, and -- in the case of the Fire Wasps -- white skulls as victory symbols.Individual crews often attach additional kill banners to the weapons of their Titans, recording the number of kills each weapon has scored. This often includes some unoffical emblem adopted by the Titan's princeps, or by the moderatus in charge of the weapons. Some Titans also have personal emblems, slogans and the like painted on their carapace, weapons or leg fairings, and in many Legios crews are permitted a great degree of freedom in personalising their Titans. The basic colours of the Legio and its badges must, of course, be retained and respected.In the aftermath of the Horus Heresy the loyal Titan Legions of the Collegia Titanica began adding Purity Seals to their Titans. These huge seals (very similar to their smaller counterparts utilised by individual Space Marines of the Adeptus Astartes) were made of soft metal and applied by the Tech-priests of the Adeptus Mechanicus as a mark of purity and a ward against corruption.Painted and inscribed with runes, decorated with long ribbon banners, the seals are still placed upon Titans. They are a remembrance of the shameful days of the Heresy when thousands of Titans were turned against the Emperor by the dark influence of Chaos. During the Great Scouring the Titans also carried a campaign pennant on the Divisio Militaris banner. This long white flag was added to the Titans as a mark of loyalty, and usually bore a Loyalist slogan, Perfidi Purgendi or Bellum Iustum, (translated in High Gothic as "treachery purged" and "just war," respectively) were popular examples. Such banners are rarely used today, for few campaigns have ever required such devotion and fanaticism as were needed to combat the Heresy.The Traitor Titan Legions of the Horus Heresy maintained their old Legio's colours in most cases after the conflict: the black, white and yellow of the Fire Masters; the black and orange of the Legio Fureans and the black, white and red of the Legio Mortis. Imperial banners, however, were universally replaced by flags showing the the Eye of Horus, the mark of rebellion and fealty to the Warmaster.