Tormented Mexican painter Frida Kahlo meticulously painted blood, gore and her emotional suffering. Yet curators recently discovered she lived playfully, spending hours with puppets acting out scenes in a childlike theater.As she challenged conventional ideas of beauty, she boldly flaunted her unibrow and mustache, yet kept photos of bikini-clad women and beefy, chisled-faced sailors.Mexico's celebration of the centennial anniversary of her birth this summer demonstrates there is still much to learn about one of its most revered 20th-century icons, whose life and self-portraits have inspired books, plays and even the 2002 Hollywood film, "Frida," starring Salma Hayek.To mark the anniversary, curators have carefully selected for public display a small representation of the thousands of keepsakes, notes, sketches and clothing found in 2004 at her former family-home-turned-museum in Mexico City.The discovery, including the puppet theater and photos, confronts widely held beliefs of the eccentric wife of muralist Diego Rivera. Part of the new find will be on display at the Casa Azul July 6, under the exhibit name "The Treasures of the Blue House, Frida and Diego."If "Every mind is a world" as the old Mexican adage goes, Kahlo's was a vast universe that art researchers say they have only started to understand and will spend decades more exploring, 100 years after her birth."This discovery has raised a lot of doubts and reshaped many things," said curator Ricardo Perez, who is part of a team of five experts overseeing the findings. "Concerning Frida, there are a lot of surprises."Kahlo spent a lifetime building her image as a mythical, self-possessed and often defiant figure who was openly bisexual and had an affair with Russian revolutionary Leon Trotsky. She dressed in elaborately embroidered Tehuana Indian dresses and even scratched out the date on her birth certificate, making herself three years younger so she could say she was born in 1910, the year of the Mexican revolution.But researchers are uncovering an optimistic, studious and even playful side of Kahlo that rarely is reflected in the self-portraits that make up her best-known work.Perez, who has analyzed and studied the lives of Rivera and Kahlo for more than 50 years, said the puppet theater was among the biggest surprises and "is a testimony to the child inside Frida her entire life."