Marqeta is a startup sought to reinvent the way we pay, making deals with merchants to offer steep discounts for members who fill their card (and that merchant’s account) in advance — in effect, pre-paying. Every purchase is “plussed” up, so that’s where DC started with development of this complete identity system, card design, website and collateral. And because the target is youngish moms, it helps to present it all with a little style.