diff --git a/EduNetworkBuilder/Network.cs b/EduNetworkBuilder/Network.cs
index 7e46002..c780425 100644
--- a/EduNetworkBuilder/Network.cs
+++ b/EduNetworkBuilder/Network.cs
@@ -78,7 +78,7 @@ namespace EduNetworkBuilder
         /// WhatFrom: If we are launched from a homework, we remember it here.
         /// </summary>
         public SchoolworkClass WhatFrom = null;
-        public List<string> ColorNames = new List<string>() { "Black", "White", "Green", "LightGreen", "Blue", "LightBlue", "Grey", "Brown", "SaddleBrown", "Empty" };
+        public List<string> ColorNames = new List<string>() { "Black", "White", "Green", "LightGreen", "Blue", "LightBlue", "Gray", "Brown", "SaddleBrown", "Empty" };
 
 
         public Network(string Name)