import type { Theme } from '@earendil-works/pi-coding-agent';
export declare function isHexColor(color: string): boolean;
export declare function applyColor(theme: Theme, color: string, text: string): string;
export declare function getVisibleWidth(text: string): number;
export declare function formatElapsed(startedAt: number | undefined, endedAt?: number): string;
export declare function getExpandToggleKey(): string;