/*
  * ENUM Grouping - Can use Partial Class for more readability
  * Use Namespace for using
  * Without Namespace for global const and Enum
  */
public static class Constants
{
    public static class EditorThemes
    {
        public const int LIGHT = 0;
        public const int DARK = 1;
        public const int PLAID = 2;
    }
    public static class Fighters
    {
        public const string DEFAULT_FIGHTERNAME = "X-Wing";
        public static readonly Guid DEFAULT_FIGHTER_ID = Guid.Empty; // static readonly values work, too
    }

    // other static class groupings

    // more stuff here
}

public static class Enums
{
    public static class Shipping
    {
        public enum Status
        {
            Pending,
            AwaitingPickup,
            InTransit,
            Delivered
        }

        public enum Providers
        {
            USPS,
            UPS,
            FedEx
        }
    }

    // other nested classes for other groups of enums
}