export type ThemeMode = "light" | "dark";
export declare function useTheme(): {
    theme: import('vue').Ref<ThemeMode, ThemeMode>;
    isDark: import('vue').ComputedRef<boolean>;
    initTheme: (fallback?: ThemeMode) => ThemeMode;
    setTheme: (value: ThemeMode, options?: {
        persist?: boolean;
    }) => void;
    toggleTheme: () => void;
    syncThemeFromSetting: (value?: ThemeMode) => void;
};