Proto-Cubism color, simply by eliminating color from his paintings, Picasso in 1908 concentrated on form. Kahnweiler notes: "Derain, too, had abandoned decorative light painting in 1907", Kahnweiler writes, "preceding Braque by a few months. But from the outset, their roads were diverse. Derain's endeavor to retain fidelity to nature in his painting separates him forever from Cubism, no matter how closely his ideas may otherwise parallel those of Braque." And Derain was not the only one to venture along the path of Cézanne, only to turn away from it in the coming years. Chagall, Friesz, Matisse, Dufy, Redon, Vlaminck and Modigliani
Jean Metzinger Jean Metzinger Jean Dominique Antony Metzinger (; 24 June 1883 – 3 November 1956) was a major 20th-century French painter, theorist, writer, critic and poet, who along with Albert Gleizes wrote the first theoretical work on Cubism. His earliest works, from 1900 to 1904, were influenced by the Neo-impressionism of Georges Seurat and Henri-Edmond Cross. Between 1904 and 1907 Metzinger worked in the Divisionist and Fauvist styles with a strong Cézannian component, leading to some of the first proto-Cubist works. From 1908 Metzinger experimented with the faceting of form, a style that would soon become known as Cubism. His early