He became the leader of a group of young artists known as the Kapists (Colourists), whose members were opposed to the Romantic tradition in Polish art.
hiː bɪkˌeɪm ðə lˈiːdɚɹ əvə ɡɹˈuːp ʌv jˈʌŋ ˈɑːɹɾɪsts nˈoʊn æz ðə kˈeɪpɪsts kˈʌlɚɹˌɪsts, hˌuːz mˈɛmbɚz wɜːɹ əpˈoʊzd tə ðə ɹoʊmˈæntɪk tɹɐdˈɪʃən ɪn pˈoʊlɪʃ ˈɑːɹt.