Once confined to history classes, an indigenous script used before Spanish colonisation, is making a comeback among the Philippines’ millennials, young professionals and diaspora.Online clips of calligraphy and digital fonts for Baybayin – a 17-character indigenous script last used hundreds of years ago – have gripped the digital generation and now it is appearing on everything from tattoos and T-shirts to mobile apps.Proponents hail the curvilinear text as a crucial part of Philippine identity…