Heraldry

Heraldry is a feature that came with a 1.1.0.1 beta update. It brought additional customization for the guild leaders and their members which makes it now much easier to distinguish a friend from foe on the battlefield, or to spot and identify your guildmates coming back from a journey so you could open the gates for them.

Heraldry design
Guild leaders can design their own heraldry symbols by right clicking on the monument, entering the claim management window and clicking the 'Heraldry' button to enter heraldry window.

You don't need to worry about the tabard being stolen from the dead body of your friend and used by enemy to impersonate himself as an ally. Tabards and shields are always painted with the colors and symbols of the character's current guild.
 * Caution - you can only change your Heraldry design every couple of days, be sure before you save it.

Heraldik Héraldique