Interface ValidationError

src/utils/validation.ts:5–8

* Simple runtime validation for Timeline props without external dependencies

 */

interface ValidationError {
  path: string[];
  message: string;
}

function isValidHexColor(color: string): boolean {
  return /^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/.test(color);