Her astonishing manipulation of colour was grounded in ocular science and her own aesthetic theories. But, more importantly, Delaunay would transcend the theoretical; in addition to producing some of the most important nonfigurative art of her generation, she designed costumes for the theatre and haute couture fashion. Her rhythmic circles and squares spilled from canvas onto textiles, furniture, film sets and fast cars. Art and colour infiltrated every corner of her life, from the poems and paintings that decorated her apartment walls to the coats and dresses she paraded in the streets of Paris.