A veteran of the Istanbul, Moscow and Venice biennials, Paulina Olowska aspires to imbue reality with aspects of fantasy. She began as a painter, making nostalgic images of packaging and commercial graphics from late communist-era Poland that emulated Western styles. Now Olowska’s monumental installations include video, graphics, and neon lights. “Rainbow Brite,” the title for her show at Warsaw’s Centre for Contemporary Art, references a 1980s American cartoon about a little girl who was assigned to preserve color in a land of darkness.