This retrospective of the Ndebele painter and unofficial artist laureate of post-Apartheid South Africa presents two origin stories. The first, from which its title derives, tells of how Esther Mahlangu first identified as an artist when, having been reprimanded for daubing the walls of her family home as a child, she persevered until she was good enough to be permitted by her mother to paint its façade. The second, taking place several decades later, arrived when a group of European researchers came to her village to seek out the woman responsible for decorating the house in their photograph. “We want you,” they said, “to come to Paris.” The invitation was to participate in the 1989 exhibition “Magiciens de la Terre” at the Centre Pompidou, a show that continues to cast a long shadow over attempts to decenter or decolonize the representation in western institutions of global visual culture. Mahlangu contributed a reproduction of her own painted Ndebele house (reproduced in miniature in this exhibition), setting in train a career so prolific that her vivid polychromatic designs now serve as visual shorthand for Nelson Mandela’s vision of South Africa as a comparably vibrant and harmonious “rainbow nation.” These instantly recognizable patterns—since …