import { StorageUtilService } from "../storage/storage-util.service";
import { BehaviorSubject } from 'rxjs';
import * as i0 from "@angular/core";
type Theme = 'dark' | 'light';
export declare class ThemeService {
    private readonly storageUtilService;
    themeKey: string;
    theme$: BehaviorSubject<Theme>;
    constructor(storageUtilService: StorageUtilService<Theme>);
    getTheme(): Theme;
    setTheme(theme: Theme): void;
    listenThemeChange(): import("rxjs").Observable<Theme>;
    private saveTheme;
    static ɵfac: i0.ɵɵFactoryDeclaration<ThemeService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ThemeService>;
}
export {};