export declare function paletteColor(index: number): string;
export declare function withAlpha(color: string, alpha: number): string;
export declare const DEFAULT_PALETTE: readonly ['#3b82f6', '#10b981', '#f59e0b', '#ef4444', '#8b5cf6', '#ec4899', '#14b8a6', '#f97316', '#6366f1', '#84cc16'];