import { Options, ThemeValue } from './options';
export declare class ThemeService {
    options?: Options;
    host: HTMLElement;
    private _darkMQL;
    private _value;
    private _current;
    initialized: boolean;
    constructor(options?: Options, host?: HTMLElement);
    init(): void;
    get storage(): string;
    get systemCurrent(): string;
    set value(value: ThemeValue);
    get value(): ThemeValue;
    set current(current: string);
    get current(): string;
    switch(value: ThemeValue): void;
    private _removeDarkMQLListener;
    private _onThemeChange;
    destroy(): void;
}
declare global {
    interface Window {
        ThemeService: typeof ThemeService;
    }
}