Cards, connection lines, and mind map nodes don't support multiple fonts.
You can change text fonts of shapes and text boxes. Please note that the font cannot be chosen for a particular word or phrase in the text box, It is applied to the entire text of an object.
To change the font of your text in Miro, highlight a text or a shape and choose the font from the drop-down menu: Available in: text and shapes How to change the font Add greater interest to your text by highlighting its key points. Check out the robust Miro font collection, enriched with 20+ best-selling fonts to make your content more visually attractive and efficient.