The diaeresis in Johto Mono is the perfect way to add a touch of sophistication to your text. The diaeresis (plural: diaereses; also known as the tréma) and the umlaut are two diacritical marks that appear over certain letters. These two diacritics have similar shapes and serve similar purposes, but their names, origins, and use differ. The diaeresis is two small dots that are placed above a letter.