import { BaseSurfaceMode } from '../../base-surface/src/types';
import { DialogSurfaceProps } from './types';
/**
 * The material every dialog lays under its panel, resolved as TxModal resolves its own: refraction
 * unless another known material is asked for, over the theme's overlay colour. mask keeps a
 * near-opaque fill, and the other materials sit over the colour at half strength, so text stays
 * legible and the page still shows through to be blurred and refracted.
 */
export declare function useDialogSurface(props: Readonly<DialogSurfaceProps>): {
    surfaceMode: import('vue').ComputedRef<BaseSurfaceMode>;
    surfaceColor: import('vue').ComputedRef<string>;
    surfaceOpacity: import('vue').ComputedRef<number>;
};