See Banner for the decided part of this
page.
Known issues
Gaps in the current rules
- Whether a Banner-equivalent exists in the Figma design library is unconfirmed. This
research covered code, tests, stories, and the live Storybook index only — Figma verification
was out of scope for this pass (no authenticated Figma access was available). An absence in
code is not proof of an absence in design intent; someone with Figma access should check
before concluding this is only a code gap.
- Whether any application has already built its own ad hoc product-wide banner is
unconfirmed. No such pattern was found via the code and utilization data available in this
checkout, but that data does not cover every consuming application’s full source.
- What such a component’s severity model, dismissal behavior, and placement in page chrome
should be is entirely undecided. Nothing on the main page proposes an answer, because
nothing exists to base one on — inventing these rules here would be exactly the “confident
invented answer” this documentation’s own standards warn against.
- Whether the right fix is building a new component or extending Alert with a
product-scope option is undecided, and is a real design decision, not a documentation one.
Last modified on September 2, 2026