/**
 * @fileoverview Helper functions providing randomized background artwork URLs and time-of-day greeting strings for the chat homepage.
 */
/**
 * Gets a random artistic background about graph theory
 * and collective consciousness, 50+ AI-gen artworks found online
 * @returns {string} Imgur URL of random artistic background
 */
export declare function getBackgroundArtwork(): string;
/**
 * Get a greeting based on the time of day
 * @returns {string} A random greeting
 */
export declare const getGreeting: () => string;