Not at all, for the royalty-free rule, I was thinking of the three main parts of a visual novel game: background art, sprite art and event illustrations. User interface artwork could be part of that, but small elements like fonts and icons? It's not practical to require that. Now, if someone wanted they could use image maps and entirely hand-written elements and icons for the UI, but that's simply a different option for approaching the jam's purpose.
In short, royalty-free fonts and icons were not considered for that rule and if I host the jam next year I'll add that as an exception. Thanks for asking.










