It's possible to format notes by using HTML tags.
Not every tag is supported, but usually all you need is <tn></tn> for translation notes.
If you want something fancy, use a <span> or a <div> tag and apply some CSS with the "style" attribute.
Anchors (<a> tag) are supported.
Inheriting from Danbooru, it is possible to use the following fonts within CSS font-family directives:
- slab sans
- slab serif
- formal serif
- formal cursive
Just do <tagname style="font-family:fontname">text</tagname>, where tagname is the tag you want to use (like span, div, b...), fontname is the name of the font from the above list and text is the text to style.
You can use other fonts too, but they will likely not appear on other people's computers, so if you have to change the default font use only fonts from the above list.