/** A named CSS theme. `none` is reserved for clearing the selection. */
interface Theme {
    name: string;
    class?: string | string[];
    color?: string;
    /** @deprecated Prefer themes.default. */
    default?: boolean;
}
interface ThemeConfig {
    list: Theme[];
    default?: string;
    clearable?: boolean;
    disable?: boolean;
    /** CSS selector; `root` is an alias for the document element. */
    target?: string;
    /** Runs in the preview on selection changes. May return a cleanup function. */
    onChange?: (theme: Theme | undefined) => void | (() => void);
}
type ThemesParameter = Partial<ThemeConfig> | Theme[];

declare function getConfig(parameter?: ThemesParameter): ThemeConfig;
/** Resolve stale URL globals safely when navigating between different theme lists. */
declare function getSelectedTheme(config: ThemeConfig, selection: unknown): Theme | undefined;
declare function getThemeClasses(theme?: Theme): string[];

declare const GLOBAL_KEY = "theme";

export { GLOBAL_KEY, type Theme, type ThemeConfig, type ThemesParameter, getConfig, getSelectedTheme, getThemeClasses };