Starbucks workers in three states took legal action against the coffee giant Wednesday, saying it violated the law when it changed its dress code but refused to reimburse employees who had to buy new clothes. Employees now have to wear black shirts, with Starbucks saying it simplified its dress code to deliver a more consistent experience to customers and give its employees clearer guidance. But since 2016, Starbucks has allowed employees to wear patterned shirts in a wider variety of colors to