Starting with their introduction in the 60s run of the comics, Rumi has the typical appearance of a female scholar, which makes sense as they're a recent university graduate. Long skirts, ties, button ups under sweaters, trench coats, cardigans, and sweater vests. Their main colours are brown, green, and black. Note; they have not been confirmed as trans at this point.

Next is their appearance in the 70s and 80s. Rumi mostly sticks to their original aesthetic in the 60s, but they look more relaxed and masculine (loose silhouettes). They wear jeans and slacks more often, and loose button ups, more graphic shirts, and less ties. Rumi also begins wearing leather jackets. Lots of blues, blacks, florals, and browns. This is when the subtle trans coding begins, but they still aren't out yet.