export declare const enum Theme {
    Light = "vscode-light",
    Dark = "vscode-dark",
    HighContrast = "vscode-high-contrast"
}
/**
 * Gets the current general VS Code theme.
 */
export declare const getTheme: () => Theme;
/**
 * Watches the body and calls the callback function when the colors change.
 * This can very easily be wrapped into a react or preact hook, for example:
 *
 * ```
 * import { useState, useEffect } from 'preact/hooks';
 *
 * const useTheme = () => {
 *   const [theme, setTheme] = useState<{ [key: string]: string }>({});
 *   useEffect(() => observeTheme(setTheme), []);
 *   return theme;
 * };
 * ```
 */
export declare const observeTheme: (onChange: (theme: Theme) => void) => (() => void);