For a man who prefers simple, checkered shirts, President-elect Rodrigo R. Duterte prefers these customized DU30 buttons as the only embellishments on the Piña-Jusi Barong that he will wear at his inauguration as the country’s 16th president tomorrow. The Barong was designed by Davao-based Bonie Adaza (inset photo) who shows his sketch of the presidential garb. (Keith Bacongco)