This system is formatted in JSON.

    {
      "id": int, 
      "selector": string, 
      "display-name": string,
      "matching": [
        // You can have multiple matches
        {
          // Types: "WithItemIds", "IsTool", "IsMelee", "IsRanged", "IsMagic", "IsSummoner".
          "$type": string,
          // "items" is only applicable for "WithItemIds".
          "items": [int], 
          // Options: "Allow", "Deny".
          "allow-or-deny": string
        }
      ]
    },