“There was skepticism when Dallas Museum of Art director Agustín Arteaga proposed bringing a major exhibit of Mexican masterpieces here from Paris and allowing families who were not regular museum visitors to see it for free.” But the show has been a big hit, and more than half of its visitors, many of them Latino, are newcomers to the DMA. Says docent José Villanueva, “I haven’t seen this many brown people in the museum before.”