import * as i0 from "@angular/core";
/**
 * Modal overlay component providing a backdrop behind the modal content.
 * Supports theme-aware background colors and customizable opacity.
 */
export declare class ModalOverlayComponent {
    private themeService;
    /** Custom opacity for the overlay (0-1) */
    opacity: import("@angular/core").InputSignal<number | null>;
    /** Custom background color */
    backgroundColor: import("@angular/core").InputSignal<string | null>;
    overlayStyles: import("@angular/core").Signal<Record<string, any>>;
    static ɵfac: i0.ɵɵFactoryDeclaration<ModalOverlayComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<ModalOverlayComponent, "tgui-modal-overlay", never, { "opacity": { "alias": "opacity"; "required": false; "isSignal": true; }; "backgroundColor": { "alias": "backgroundColor"; "required": false; "isSignal": true; }; }, {}, never, never, true, never>;
}