> It does not support non-English title casing

Perhaps document that clearly—it's an important restriction that the library assumes English-language strings. ("no inferences on the language itself is made" isn't quite true since the language is inferred to be English, or to at least follow English-compatible rules for casing)

Thanks for your feedback! You're right; I should clarify that the library assumes English-language strings for casing. I'll update the documentation to make this limitation clear. I appreciate you pointing it out!