import React from 'react';
import { STEP } from '../constants';
export type FlashLivenessOverlayProps = {
    step: typeof STEP[keyof typeof STEP];
    currentColor: string;
    flashIntensity: number;
};
export declare const FullScreenOverlay: import("styled-components/dist/types").IStyledComponentBase<"web", import("styled-components/dist/types").Substitute<React.DetailedHTMLProps<React.HTMLAttributes<HTMLDivElement>, HTMLDivElement>, {
    $backgroundColor: string;
    $intensity: number;
}>> & string;
declare const FlashLivenessOverlay: React.FC<FlashLivenessOverlayProps>;
export default FlashLivenessOverlay;