Hi! In the gui/button folder I've included two blank buttons (idle and hover). Open them in an image editing program that supports text. After writing on them whatever you want, save them in the same gui/buttons folder with the same name as the button you want to change. For example the 'Alice' button's filename is gallerybutton4_idle.png for the idle version and gallerybutton4_hover.png for the hover version. So you'd want to use these filenames when you save your custom button and it'll override the template.