Overlay

An overlay separates foreground content from the background. Use one to de-emphasise the page behind and direct attention to the active layer. Its content is usually a box.

Where it exists

axisvalue
React moduleyes — shared UI library
React tierlibrary
CSS class.c-overlay
CSS filesoverlay.css
Storybooknone
Figmanot mapped
Uses in product111
Uses in admin0
Seen ascss-class-attribute, jsx-tag
Join provenanceinferred:kebab

An empty cell above is a measurement, not an omission: every axis is printed whether or not it is populated. What each one costs is on /gaps.md, linked from the axis name wherever this page has a gap.

Members

A member is attached to its parent at module scope, so it is imported through the parent and versioned with it. Members have no page of their own: they declare no CSS class, carry no story and join no Figma set, and their uses are counted against the parent rather than separately.