static 변수만 사용하고 constructor 쓸 필요 없는 class

class AppColor {
  AppColor._();

  static const Color notWhite = Color(0xFFEDF0F2);
  static const Color nearlyWhite = Color(0xFFFEFEFE);
  static const Color white = Color(0xFFFFFFFF);
  static const Color nearlyBlack = Color(0xFF213333);
}

https://velog.io/@vkdl370528/Dart-Private-Contructor에-관하여

[Dart] Private Contructor에 관하여