diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
index fca0a89..f6efc6d 100644
--- a/.github/FUNDING.yml
+++ b/.github/FUNDING.yml
@@ -1 +1 @@
-custom: ["https://www.paypal.me/wizou"]
+custom: ["http://wizou.fr/donate.html"]
diff --git a/EXAMPLES.md b/EXAMPLES.md
index 2e8c877..8bee3d7 100644
--- a/EXAMPLES.md
+++ b/EXAMPLES.md
@@ -130,9 +130,7 @@ for (int offset = 0; ;)
     if (messagesBase is not Messages_ChannelMessages channelMessages) break;
     foreach (var msgBase in channelMessages.messages)
         if (msgBase is Message msg)
-        {
-            // process the message
-        }
+            Console.WriteLine(msg.message);
     offset += channelMessages.messages.Length;
     if (offset >= channelMessages.count) break;
 }
@@ -150,7 +148,7 @@ See the `DisplayMessage` method in [Examples/Program_ListenUpdates.cs](Examples/
 
 You can filter specific chats the message are posted in, by looking at the `Message.peer_id` field.
 
-### Download media files you save/forward to yourself
+### Download media files you forward to yourself (Saved Messages)
 
 See [Examples/Program_DownloadSavedMedia.cs](Examples/Program_DownloadSavedMedia.cs).
 
@@ -162,7 +160,7 @@ This is done by activating the experimental `client.CollectAccessHash` system.
 See [Examples/Program_CollectAccessHash.cs](Examples/Program_CollectAccessHash.cs) for how to enable it, and save/restore them for later use.
 
 ### Use a proxy to connect to Telegram
-This can be done using the client.TcpHandler delegate and a proxy library like [StarkSoftProxy](https://www.nuget.org/packages/StarkSoftProxy/):
+This can be done using the `client.TcpHandler` delegate and a proxy library like [StarkSoftProxy](https://www.nuget.org/packages/StarkSoftProxy/):
 ```csharp
 using var client = new WTelegram.Client(Environment.GetEnvironmentVariable);
 client.TcpHandler = async (address, port) =>
diff --git a/README.md b/README.md
index ba2d58d..ac67b9f 100644
--- a/README.md
+++ b/README.md
@@ -42,14 +42,17 @@ To do this, you need to write a method that will provide the answers, and pass i
 ```csharp
 static string Config(string what)
 {
-    if (what == "api_id") return "YOUR_API_ID";
-    if (what == "api_hash") return "YOUR_API_HASH";
-    if (what == "phone_number") return "+12025550156";
-    if (what == "verification_code") return null; // let WTelegramClient ask the user with a console prompt 
-    if (what == "first_name") return "John";      // if sign-up is required
-    if (what == "last_name") return "Doe";        // if sign-up is required
-    if (what == "password") return "secret!";     // if user has enabled 2FA
-    return null;
+    switch (what)
+    {
+        case "api_id": return "YOUR_API_ID";
+        case "api_hash": return "YOUR_API_HASH";
+        case "phone_number": return "+12025550156";
+        case "verification_code": return null; // let WTelegramClient ask the user with a console prompt 
+        case "first_name": return "John";      // if sign-up is required
+        case "last_name": return "Doe";        // if sign-up is required
+        case "password": return "secret!";     // if user has enabled 2FA
+        default: return null;                  // let WTelegramClient decide the default config
+    }
 }
 ...
 using var client = new WTelegram.Client(Config);
@@ -161,3 +164,5 @@ This library can be used for any Telegram scenarios including:
 Secret chats (end-to-end encryption, PFS) and connection to CDN DCs have not been tested yet.
 
 Developers feedbacks are welcome in the Telegram channel [@WTelegramClient](https://t.me/WTelegramClient)
+
+If you like this library, please [consider a donation](http://wizou.fr/donate.html). ❤ This will help the project keep going.
diff --git a/src/Generator.cs b/src/Generator.cs
index 869108b..2c7bde8 100644
--- a/src/Generator.cs
+++ b/src/Generator.cs
@@ -92,7 +92,7 @@ namespace WTelegram
 			FromSchema(schema, outputCs);
 		}
 
-		public void FromSchema(SchemaJson schema, string outputCs)
+		internal void FromSchema(SchemaJson schema, string outputCs)
 		{
 			currentJson = Path.GetFileNameWithoutExtension(outputCs);
 			using var sw = new StreamWriter(outputCs, false, Encoding.UTF8);
@@ -789,13 +789,13 @@ namespace WTelegram
 		}
 
 #pragma warning disable IDE1006 // Naming Styles
-		public class SchemaJson
+		internal class SchemaJson
 		{
 			public List<Constructor> constructors { get; set; }
 			public List<Method> methods { get; set; }
 		}
 
-		public class Constructor
+		internal class Constructor
 		{
 			public string id { get; set; }
 			public string predicate { get; set; }
@@ -806,7 +806,7 @@ namespace WTelegram
 			public int ID => string.IsNullOrEmpty(id) ? 0 : int.Parse(id);
 		}
 
-		public class Param
+		internal class Param
 		{
 			public string name { get; set; }
 			public string type { get; set; }
@@ -814,7 +814,7 @@ namespace WTelegram
 			public override int GetHashCode() => HashCode.Combine(name, type);
 		}
 
-		public class Method
+		internal class Method
 		{
 			public string id { get; set; }
 			public string method { get; set; }