import * as React from 'react';
/** The graphic-preset decorative layer when motion="drift" (REQ-SURF-159). */
export declare function BackdropDriftLayer(): React.ReactElement;
export declare function BackdropMediaLayer({ sample, source, video, drift, children }: {
    sample: boolean;
    source: string;
    video?: boolean;
    drift?: boolean;
    children: React.ReactNode;
}): React.ReactElement;
/** Video playback gate + pause toggle for the video layer behind `layerRef`. */
export declare function BackdropTone({ layerRef }: {
    layerRef: React.RefObject<HTMLDivElement | null>;
}): React.ReactElement | null;
//# sourceMappingURL=BackdropTone.d.ts.map