Options and Save As put OK last, Notebook Properties, Link and Customize Tags
first. Every Cancel and default pair now stands as the platform's own dialogs
place it, the default last on macOS and GNOME and first on Windows, the
default outlined in the accent as Enter's button. Password Protection takes
the keyboard's focus as it opens, and Save As's labels end in colons as the
other dialogs' do.

Assisted-by: claude-opus-5.5