import { EventEmitter, RendererFactory2, Renderer2 } from '@angular/core';
import { Theme } from './symbols';
import { DomSanitizer } from '@angular/platform-browser';
import * as i0 from "@angular/core";
export declare class ThemeService {
    private sanitizer;
    themes: Theme[];
    private rendererFactory;
    theme: string;
    themeChange: EventEmitter<Theme>;
    renderer: Renderer2;
    constructor(sanitizer: DomSanitizer, themes: Theme[], rendererFactory: RendererFactory2, theme: string);
    getTheme(name: string): Theme;
    getActiveTheme(): Theme;
    setTheme(name?: string): void;
    static ɵfac: i0.ɵɵFactoryDef<ThemeService, never>;
    static ɵprov: i0.ɵɵInjectableDef<ThemeService>;
}