import { EventEmitter } from '@angular/core';
import { Theme } from './symbols.interface';
export declare class CssThemeService {
    themes: Theme[];
    theme: string;
    themeChange: EventEmitter<Theme>;
    constructor(themes: Theme[], theme: string);
    getTheme(name: string): any;
    getActiveTheme(): any;
    getProperty(propName: string): any;
    setTheme(name: string): void;
    registerTheme(theme: Theme): void;
    updateTheme(name: string, properties: {
        [key: string]: string;
    }): void;
}