Opus 217. Against the Enamel of a Background Rhythmic with Beats and Angles, Tones, and Tints, Portrait of M. Félix Fénéon in 1890 (French: Opus 217. Sur l’émail d’un fond rythmique de mesures et d’angles, de tons et de teintes, Portrait de M. Félix Fénéon en 1890) is an 1890 oil painting by French artist Paul Signac. The Neo-impressionist work depicts the French art critic Félix Fénéon standing in front of a swirling coloured background. It has been held by the Museum of Modern Art in New York since 1991.