import type { HTMLAttributes } from 'svelte/elements';
export type Theme = 'dark' | 'light' | 'system';
export interface CreateRootProps {
    theme: Theme;
}
export interface RootState {
    element: HTMLElement | null;
    theme: Theme;
    toggle: () => void;
    props: HTMLAttributes<HTMLElement>;
}
export declare const THEME_LOCAL_STORAGE_KEY = "sv-theme";
export declare function createRoot(props: CreateRootProps): RootState;