Changes When Casemapped - No
No is the designation for characters that remain completely unchanged in appearance and code point when subjected to any casemapping operation, including uppercase, lowercase, and titlecase transformations. This applies to characters that inherently lack a case distinction, such as digits, punctuation marks, symbols, spaces, and most scripts that do not have uppercase or lowercase forms, like Chinese or Arabic. For these characters, the mapping to their own code point is effectively a no-op, meaning they are inherently case-neutral. The value also covers those rare characters that have case counterparts but are defined to map to themselves in all contexts, ensuring no alteration occurs. This flag simplifies text processing by allowing systems to skip unnecessary transformation attempts for the vast majority of non-cased characters.