I assume you mean cursive fonts.
I think anything can be in a skin as long as its properly executed. There are no bad themes really, only bad executions.
Personally didn't watch the show, but from what I have seen I could imagine cursive fonts being used well in a Violet Evergarden skin. Maybe also in a promised neverland skin.
They both have various parts where letters and old books are relevant, which usually are written in cursive.