/**
 * M33: the colours the hub draws with. pi's own theme fits it (the hub inside pi passes
 * it); the standalone hub passes pi's too, loaded from the user's settings.
 */
export interface HubTheme {
    /** Colour `text` with a theme colour: "accent", "dim", "border", "warning", "error", "success", ... */
    fg(color: string, text: string): string;
    bold(text: string): string;
}
/** The standalone hub's colours (NO_COLOR: none). */
export declare function ansiTheme(env?: NodeJS.ProcessEnv): HubTheme;