import type { CSSResult, ReactiveController, ReactiveControllerHost, ReactiveElement } from 'lit';
type Theme = 'material' | 'bootstrap' | 'indigo' | 'fluent';
type Themes = {
    light: {
        [K in Theme | 'shared']?: CSSResult;
    };
    dark: {
        [K in Theme | 'shared']?: CSSResult;
    };
};
type ThemeChangedCallback = (theme: Theme) => unknown;
type ThemingControllerConfig = {
    themeChange?: ThemeChangedCallback;
};
declare class ThemingController implements ReactiveController {
    private readonly _host;
    private readonly _themes;
    private readonly _options?;
    private _theme;
    private _variant;
    get theme(): Theme;
    constructor(host: ReactiveControllerHost & ReactiveElement, themes: Themes, config?: ThemingControllerConfig);
    /** @internal */
    hostConnected(): void;
    /** @internal */
    hostDisconnected(): void;
    /** @internal */
    handleEvent(): void;
    private _getStyles;
    protected _adoptStyles(): void;
    private _handleThemeChanged;
}
export declare function addThemingController(host: ReactiveControllerHost & ReactiveElement, themes: Themes, config?: ThemingControllerConfig): ThemingController;
export type { ThemingController };