Fedoras are a do, but bucket hats are a don’t. Colors such as charcoal, navy, brown and black are in – bright ones like red and yellow are out. Patterns are cool, as long as they are small and subtle, and denim works as long as it’s not light-wash. These may sound like decrees from the glossy pages of a fashion magazine, but in fact, they are missives from Starbucks’ new employee dress code.