Colourism is defined as one of the most important currents in 20th-century Polish painting, consisting of building up the form in a painting with colour, ignoring line and contour. The subject for colourists - members of the "Paris Committee" and artistic groups: "Zwornik", "Unicorn" or "Prism" - was important insofar as it allowed colour relationships between spots to be freely resolved on the canvas. Nature was to be the impetus for these colour solutions in painting. The large collection of Jozef Pankiewicz's paintings at the exhibition is a desire to mark a personality important to 20th century Polish art. His pedagogical activity and his patronage of the "Paris Committee" had a great influence on the next generations of Polish painters, for whom colour became the most important means of artistic expression. Also on display are works by several of his students, including: Eugeniusz Eibisch and Stanisław Borysowski, who settled in Toruń in 1946 and was a professor at the Faculty of Fine Arts at the Nicolaus Copernicus University.