How do you change your recruit's cape color after they become rank 10 master assassins in assassin's creed brotherhood?

After your recruit reaches rank 10 as a Master Assassin in Assassin's Creed Brotherhood, you can change their cape color by visiting a tailor. Locate a tailor in any city, and interact with them to access the customization menu. From there, you can select the desired cape color for your recruit, allowing you to personalize their appearance.