/**
 * Load a theme's full config including CSS variables from the filesystem.
 *
 * @param data - Object with `theme` name and `mode` ('light' | 'dark').
 * @returns Theme config, CSS variables, and font information.
 */
export declare const getThemeConfigForSSR: import("@tanstack/react-start").OptionalFetcher<undefined, (data: {
    theme: string;
    mode: string;
}) => {
    theme: string;
    mode: string;
}, Promise<{
    theme: string;
    mode: string;
    cssVars: Record<string, string>;
    fonts: any;
    config: any;
}>>;
/**
 * List all themes available in the server-side registry.
 *
 * @returns Array of theme summaries with id, label, and available modes.
 */
export declare const getAvailableThemesForSSR: import("@tanstack/react-start").OptionalFetcher<undefined, undefined, Promise<any>>;