Galleri Sigma is an art gallery whose website lists an exhibition by Mats Rundberg dated 28 November 2026. The exhibition is titled “Framåt bakåt, upp ned, stor liten, tung lätt, kall varm, ljus mörk, nej, ja och alla andra motsatser finns i...” The title translates as “Forward, backward, up, down, big, small, heavy, light, cold, warm, light, dark, no, yes, and all the other opposites exist in...” It sets paired directions, sizes, weights, temperatures and states against one another, ending on an unfinished thought. Those contrasts offer a way into the exhibition: consider how the work relates to movement and scale, or to temperature and light. The website names Mats Rundberg as the artist, but gives no medium or further description of the works. The date falls after this entry’s publication on 7 November 2026, making it the next exhibition listed. Wikidata records Galleri Sigma as founded or opened in 1972.