By day, the long-awaited M+ art center crackles with the energy of visitors and staff buzzing about. But as soon as the sun sets, the museum takes on another life, its harbor-facing facade illuminated by 5,600 LED tubes, from afar resembling a giant television screen. Words, numbers, pictures, and videos flash though the night, announcing the ambitious new institution, billed as a museum of visual culture, as seen from a Hong Kong perch.