import type { MaterialAttributes } from '../../../contracts/material.js';
import type { OverlayKind } from './overlayTypes.js';
export interface OverlayMaterialOptions {
    /** Per-instance overlay material is restricted to 'regular' | 'identity' (REQ-CMP-78). */
    variant?: 'regular' | 'identity' | undefined;
    /** Overrides the kind's default thickness (REQ-CMP-97). */
    thickness?: 'thick' | 'regular' | 'thin' | undefined;
    /** Honoured only on dialog and popover (REQ-CMP-78); ignored elsewhere. */
    prominent?: boolean | undefined;
}
export declare function overlayMaterial(kind: OverlayKind, opts?: OverlayMaterialOptions): MaterialAttributes & {
    'data-ag-overlay': OverlayKind;
};
//# sourceMappingURL=overlaySurface.d.ts.map