import { BehaviorSubject } from 'rxjs';
import * as i0 from "@angular/core";
export type ThemeModeType = 'dark' | 'light' | 'system';
export declare class ThemeModeService {
    mode: BehaviorSubject<ThemeModeType>;
    menuMode: BehaviorSubject<ThemeModeType>;
    constructor();
    updateMode(mode: ThemeModeType): void;
    updateMenuMode(menuMode: ThemeModeType): void;
    init(): void;
    switchMode(mode: ThemeModeType): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ThemeModeService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ThemeModeService>;
}