import { RendererFactory2 } from '@angular/core';
import { Observable } from 'rxjs';
import { THEMES } from './user-settings.model';
import * as i0 from "@angular/core";
export declare class UserSettingsService {
    static readonly THEME_KEY = "m-features:theme";
    initialTheme: THEMES | false;
    preferedColorScheme: THEMES;
    private renderer;
    constructor(rendererFactory: RendererFactory2);
    private _theme$;
    get theme$(): Observable<THEMES>;
    private _theme;
    get theme(): THEMES;
    set theme(value: THEMES);
    toggle(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<UserSettingsService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<UserSettingsService>;
}