The UI standards drop working shorthand, state the spacing scale once in
section 2 (section 13 had listed an older scale without 2.5 and 3.5) and
use no em dashes. The v1.3 to v1.4 migration note no longer claims that
/settings#anchor URLs redirect to their section: the fragment never
reaches the server. A test holds both documents to this.
The binding UI rulebook (card anatomy, spacing scale, text colour,
tokens, primitive mapping, enforcement) lived outside the repository,
so a contributor could follow a code comment to a file they could not
open. It now lives at docs/contributing/ui-standards.md, every comment
that cited it points there, and the docs index and ui-guidelines.md
say which document wins when they disagree.