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4144989d - Fix American English spelling in docstrings and clarify base class behavior

Fix American English spelling in docstrings and clarify base class behavior - 'normalises' → 'normalizes' - 'ANSI-coloured' → 'ANSI-colored' - Clarify that OutputFormat.check_scheme_args base implementation always returns True Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>