Painting advanced in the Muromachi period in the form of ink wash painting under the influence of Zen Buddhism as practiced by such masters as Sesshū Tōyō. Zen Buddhist tenets were also elaborated into the tea ceremony during the Sengoku period. During the Edo period, the polychrome painting screens of the Kanō school were made influential thanks to their powerful patrons (including the Tokugawas). Popular artists created "ukiyo-e", woodblock prints for sale to commoners in the flourishing cities. Pottery such as Imari ware was highly valued as far away as Europe.