How do I add new font file?

I simply want to change a font-face setting in the css stylesheet (I know how to do this), but it needs to reference the relevant font in the font-folder - and I can’t see how to access this from the web-based CMS interface?

Am I overlooking something very obvious?


This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/110935-how-do-i-add-new-font-file