import { FC, MouseEvent } from 'react';
import { BackdropTheme } from './BackdropTheme';
export interface BackdropProps {
    /**
     * The z-index of the backdrop.
     * @default 998
     */
    zIndex?: number;
    /**
     * The index of the portal.
     * @default 0
     */
    portalIndex?: number;
    /**
     * Additional class names to apply to the backdrop.
     */
    className?: string;
    /**
     * Theme for the Backdrop.
     */
    theme?: BackdropTheme;
    /**
     * Callback for when the backdrop is clicked.
     */
    onClick?: (event: MouseEvent) => void;
}
export declare const Backdrop: FC<BackdropProps>;