# TableHeaderCell ``. `aria-sort` belongs on the th, never on the inner button — assistive tech reads the sort state from the column header. ## Props | Prop | Type | Default | Required | Description | |---|---|---|---|---| | `sortKey` | `string` | — | no | Sort key this column emits. Enables the sort control when the table is `sortable`. | | `numeric` | `boolean` | — | no | Right-aligns and renders tabular figures (D62). | | `children` | `ReactNode` | — | no | Header label. | | `className` | `string` | — | no | Additional CSS class name(s) merged onto the component's root element. | ## Theming This component has no `--psi-table-header-cell-*` tokens — its styling binds scale tokens only, so there is nothing component-scoped to override. Theme changes reach it through the semantic tokens of its children and surroundings. ## Rules - One accent per visual group; everything else neutral or ghost. - danger only for actions with real consequences. - Sizes are px numbers (24|32|40|48), never S/M/L. - Typography tokens are --psi-text-{size}-{lineHeight}-{weight}. - Override component tokens (--psi-{component}-*), not semantic tokens, for one-off theming. - --psi-button-font overrides button typography across all sizes (documented D34 override; ember → mono). - Wrap labeled form controls in Field — label association, description/error line, aria-describedby and aria-invalid come wired; don't hand-roll label+message rows. - Field is for a control with a *visible* label. A toolbar filter control named by aria-label or placeholder takes neither a Field nor a hand-rolled label row — compare filter-toolbar (no labels) with table-pagination ("Rows per page" visible, so Field). - Use Dialog for blocking modal flows — title/footer slots, dismissible gate; danger stays on the footer Buttons, one accent per group.