diff --git a/README.md b/README.md
index f5cc26c8..ee31da9d 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,11 @@
 - [Summary](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/branch/1.1/README.md)
-- [[tutorial v1.1_030] A variable with type "domainname"](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_030/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_030~1..v1.1_030))
+- [[tutorial v1.1_031] A variable with type's parameters](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_031/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_031~1..v1.1_031))
 
-# [tutorial v1.1_031)] A variable with type's parameters
+# [tutorial v1.1_032)] A variable with type "port"
 
-[View the diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_031~1..v1.1_031)
+[View the diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_032~1..v1.1_032)
 
-[Read the documentation](https://pedago.gwenaelremond.fr/bribes/rougail/tutorial/disabled.html#a-variable-with-type's-parameters)
+[Read the documentation](https://pedago.gwenaelremond.fr/bribes/rougail/tutorial/disabled.html#a-variable-with-type-"port")
 
 
 ## Screenshot
@@ -31,7 +31,7 @@ pip install rougail-cli rougail-output-exporter rougail-output-doc rougail-user-
 Then switch to the tutorial page:
 
 ```shell
-git switch --detach v1.1_031
+git switch --detach v1.1_032
 ```
 
 ## Structure
@@ -39,10 +39,10 @@ git switch --detach v1.1_031
 
 
 <p>
-<a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_031/./">.</a><br/>
-	└── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_031/./firefox/">firefox</a><br/>
-	    ├── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_031/./firefox/00-proxy.yml">00-proxy.yml</a><br/>
-	    └── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_031/./firefox/10-manual.yml">10-manual.yml</a><br/>
+<a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_032/./">.</a><br/>
+	└── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_032/./firefox/">firefox</a><br/>
+	    ├── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_032/./firefox/00-proxy.yml">00-proxy.yml</a><br/>
+	    └── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_032/./firefox/10-manual.yml">10-manual.yml</a><br/>
 <br/><br/></p>
 
 Contents of the firefox/10-manual.yml file
@@ -61,6 +61,11 @@ manual:  # Manual proxy configuration
       type: domainname
       params:
         allow_ip: true
+
+    port:
+      description: HTTP Port
+      type: port
+      default: 8080
 ...
 
 ```
@@ -88,19 +93,123 @@ rougail -m firefox/ -o doc
 | Variable&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   | Description&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   |
 |------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
 | **manual.http_proxy.address**<br/>[`domainname`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                                                         | HTTP address.<br/>**Validator**: the domain name can be an IP                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
+| **manual.http_proxy.port**<br/>[`port`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                                                                  | HTTP Port.<br/>**Validators**: <br/>- well-known ports (1 to 1023) are allowed<br/>- registred ports (1024 to 49151) are allowed<br/>- private ports (greater than 49152) are allowed<br/>**Default**: 8080                                                                                                                                                                                                                                                                                                                                                   |
 
 ### Let's generate the changelog
 
 ```shell
 rougail -m firefox/ -o doc --doc.contents changelog
 ```
-#### Modified variable
+#### New variable
 
-| Variable&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   | Description&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   |
-|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| **manual.http_proxy.address**<br/>[`domainname`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                                                         | HTTP address.<br/>**Validator**: <ins>the domain name can be an IP</ins>                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
+| Variable&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   | Description&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;   |
+|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| **manual.http_proxy.port**<br/>[`port`](https://rougail.readthedocs.io/en/latest/variable.html#variables-types) `mandatory`                                                                                                                                                                                                                                                                                                                                                                                                              | HTTP Port.<br/>**Validators**: <br/>- well-known ports (1 to 1023) are allowed<br/>- registred ports (1024 to 49151) are allowed<br/>- private ports (greater than 49152) are allowed<br/>**Default**: 8080                                                                                                                                                                                                                                                                                                               |
 
 
+## User datas
+
+### Example 1
+
+#### config/01/config.yml
 
 
-- [[tutorial v1.1_032] A variable with type "port"](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_032/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_032~1..v1.1_032))
+```yml
+---
+proxy_mode: Manual proxy configuration
+manual:
+  http_proxy:
+    address: example.net
+```
+#### Output
+
+```shell
+rougail -m firefox/ -u yaml -yf config/01/config.yml
+```
+<pre>╭────────────── Caption ───────────────╮
+│ Variable <span style="color: #ffd700">Default value</span>               │
+│          Modified value              │
+│          (<span style="color: #00aa00">⏳ Original default value</span>) │
+╰──────────────────────────────────────╯
+Variables:
+<span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/01/config.yml" (⏳ <span style="color: #00aa00">No proxy</span>)
+<span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/01/config.yml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: <span style="color: #ffd700">8080</span>
+</pre>
+### Example 2
+
+#### config/02/config.yml
+
+
+```yml
+---
+proxy_mode: Manual proxy configuration
+manual:
+  http_proxy:
+    address: example.net
+    port: 3128
+```
+#### Output
+
+```shell
+rougail -m firefox/ -u yaml -yf config/02/config.yml
+```
+<pre><span style="font-weight: bold; color: #ffff00">🔔 WARNINGS</span>
+<span style="color: #ffff00">┗━━ </span>the value "3128" is an invalid port for "manual.http_proxy.port" (HTTP Port), which is not a string, it will be ignored when loading from the YAML file "config/02/config.yml"
+╭────────────── Caption ───────────────╮
+│ Variable <span style="color: #ffd700">Default value</span>               │
+│          Modified value              │
+│          (<span style="color: #00aa00">⏳ Original default value</span>) │
+╰──────────────────────────────────────╯
+Variables:
+<span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/02/config.yml" (⏳ <span style="color: #00aa00">No proxy</span>)
+<span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/02/config.yml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: <span style="color: #ffd700">8080</span>
+</pre>
+### Example 3
+
+#### config/03/config.yml
+
+
+```yml
+---
+proxy_mode: Manual proxy configuration
+manual:
+  http_proxy:
+    address: example.net
+    port: 100000
+```
+#### Output
+
+```shell
+rougail -m firefox/ -u yaml -yf config/03/config.yml
+```
+<pre><span style="font-weight: bold; color: #ffff00">🔔 WARNINGS</span>
+<span style="color: #ffff00">┗━━ </span>the value "100000" is an invalid port for "manual.http_proxy.port" (HTTP Port), which is not a string, it will be ignored when loading from the YAML file "config/03/config.yml"
+╭────────────── Caption ───────────────╮
+│ Variable <span style="color: #ffd700">Default value</span>               │
+│          Modified value              │
+│          (<span style="color: #00aa00">⏳ Original default value</span>) │
+╰──────────────────────────────────────╯
+Variables:
+<span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/03/config.yml" (⏳ <span style="color: #00aa00">No proxy</span>)
+<span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/03/config.yml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: <span style="color: #ffd700">8080</span>
+</pre>
+#### Output when invalid user datas is an error
+
+```shell
+rougail -m firefox/ -u yaml -yf config/03/config.yml --cli.invalid_user_datas_error
+```
+<pre><span style="font-weight: bold; color: #ff0000">🛑 ERRORS</span>
+<span style="color: #ff0000">┗━━ </span>the value "100000" is an invalid port for "manual.http_proxy.port" (HTTP Port), which is not a string, it will be ignored when loading from the YAML file "config/03/config.yml"
+</pre>
+
+
+- [[tutorial v1.1_033] A variable with type "boolean"](https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_033/README.md) ([diff](https://forge.cloud.silique.fr/stove/rougail-tutorials/compare/v1.1_033~1..v1.1_033))
diff --git a/config/01/cmd_ro.txt b/config/01/cmd_ro.txt
new file mode 100644
index 00000000..d46f9445
--- /dev/null
+++ b/config/01/cmd_ro.txt
@@ -0,0 +1 @@
+rougail -m firefox/ -u yaml -yf config/01/config.yml
\ No newline at end of file
diff --git a/config/01/config.yml b/config/01/config.yml
new file mode 100644
index 00000000..e3db924b
--- /dev/null
+++ b/config/01/config.yml
@@ -0,0 +1,5 @@
+---
+proxy_mode: Manual proxy configuration
+manual:
+  http_proxy:
+    address: example.net
diff --git a/config/01/output_ro.html b/config/01/output_ro.html
new file mode 100644
index 00000000..dcc2f500
--- /dev/null
+++ b/config/01/output_ro.html
@@ -0,0 +1,12 @@
+<pre>╭────────────── Caption ───────────────╮
+│ Variable <span style="color: #ffd700">Default value</span>               │
+│          Modified value              │
+│          (<span style="color: #00aa00">⏳ Original default value</span>) │
+╰──────────────────────────────────────╯
+Variables:
+<span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/01/config.yml" (⏳ <span style="color: #00aa00">No proxy</span>)
+<span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/01/config.yml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: <span style="color: #ffd700">8080</span>
+</pre>
diff --git a/config/02/cmd_ro.txt b/config/02/cmd_ro.txt
new file mode 100644
index 00000000..772ebbef
--- /dev/null
+++ b/config/02/cmd_ro.txt
@@ -0,0 +1 @@
+rougail -m firefox/ -u yaml -yf config/02/config.yml
\ No newline at end of file
diff --git a/config/02/config.yml b/config/02/config.yml
new file mode 100644
index 00000000..6e7c9dc6
--- /dev/null
+++ b/config/02/config.yml
@@ -0,0 +1,6 @@
+---
+proxy_mode: Manual proxy configuration
+manual:
+  http_proxy:
+    address: example.net
+    port: 3128
diff --git a/config/02/output_ro.html b/config/02/output_ro.html
new file mode 100644
index 00000000..8727b4c6
--- /dev/null
+++ b/config/02/output_ro.html
@@ -0,0 +1,14 @@
+<pre><span style="font-weight: bold; color: #ffff00">🔔 WARNINGS</span>
+<span style="color: #ffff00">┗━━ </span>the value "3128" is an invalid port for "manual.http_proxy.port" (HTTP Port), which is not a string, it will be ignored when loading from the YAML file "config/02/config.yml"
+╭────────────── Caption ───────────────╮
+│ Variable <span style="color: #ffd700">Default value</span>               │
+│          Modified value              │
+│          (<span style="color: #00aa00">⏳ Original default value</span>) │
+╰──────────────────────────────────────╯
+Variables:
+<span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/02/config.yml" (⏳ <span style="color: #00aa00">No proxy</span>)
+<span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/02/config.yml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: <span style="color: #ffd700">8080</span>
+</pre>
diff --git a/config/03/cmd_invalid.txt b/config/03/cmd_invalid.txt
new file mode 100644
index 00000000..ffde9149
--- /dev/null
+++ b/config/03/cmd_invalid.txt
@@ -0,0 +1 @@
+rougail -m firefox/ -u yaml -yf config/03/config.yml --cli.invalid_user_datas_error
\ No newline at end of file
diff --git a/config/03/cmd_ro.txt b/config/03/cmd_ro.txt
new file mode 100644
index 00000000..fc8085eb
--- /dev/null
+++ b/config/03/cmd_ro.txt
@@ -0,0 +1 @@
+rougail -m firefox/ -u yaml -yf config/03/config.yml
\ No newline at end of file
diff --git a/config/03/config.yml b/config/03/config.yml
new file mode 100644
index 00000000..d05944fe
--- /dev/null
+++ b/config/03/config.yml
@@ -0,0 +1,6 @@
+---
+proxy_mode: Manual proxy configuration
+manual:
+  http_proxy:
+    address: example.net
+    port: 100000
diff --git a/config/03/output_invalid.html b/config/03/output_invalid.html
new file mode 100644
index 00000000..497dfc56
--- /dev/null
+++ b/config/03/output_invalid.html
@@ -0,0 +1,3 @@
+<pre><span style="font-weight: bold; color: #ff0000">🛑 ERRORS</span>
+<span style="color: #ff0000">┗━━ </span>the value "100000" is an invalid port for "manual.http_proxy.port" (HTTP Port), which is not a string, it will be ignored when loading from the YAML file "config/03/config.yml"
+</pre>
diff --git a/config/03/output_ro.html b/config/03/output_ro.html
new file mode 100644
index 00000000..fca38054
--- /dev/null
+++ b/config/03/output_ro.html
@@ -0,0 +1,14 @@
+<pre><span style="font-weight: bold; color: #ffff00">🔔 WARNINGS</span>
+<span style="color: #ffff00">┗━━ </span>the value "100000" is an invalid port for "manual.http_proxy.port" (HTTP Port), which is not a string, it will be ignored when loading from the YAML file "config/03/config.yml"
+╭────────────── Caption ───────────────╮
+│ Variable <span style="color: #ffd700">Default value</span>               │
+│          Modified value              │
+│          (<span style="color: #00aa00">⏳ Original default value</span>) │
+╰──────────────────────────────────────╯
+Variables:
+<span style="color: #5c5cff">┣━━ </span>📓 Configure Proxy Access to the Internet: Manual proxy configuration ◀ loaded from the YAML file "config/03/config.yml" (⏳ <span style="color: #00aa00">No proxy</span>)
+<span style="color: #5c5cff">┗━━ </span>📂 Manual proxy configuration
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📂 HTTP Proxy
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┣━━ </span>📓 HTTP address: example.net ◀ loaded from the YAML file "config/03/config.yml"
+<span style="color: #5c5cff">    </span><span style="color: #5c5cff">    </span><span style="color: #5c5cff">┗━━ </span>📓 HTTP Port: <span style="color: #ffd700">8080</span>
+</pre>
diff --git a/tree.html b/tree.html
index f3ac9c54..b6437367 100644
--- a/tree.html
+++ b/tree.html
@@ -25,10 +25,10 @@
 </head>
 <body>
 	<h1>Directory Tree</h1><p>
-	<a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_031/./">.</a><br>
-	└── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_031/./firefox/">firefox</a><br>
-	&nbsp;&nbsp;&nbsp; ├── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_031/./firefox/00-proxy.yml">00-proxy.yml</a><br>
-	&nbsp;&nbsp;&nbsp; └── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_031/./firefox/10-manual.yml">10-manual.yml</a><br>
+	<a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_032/./">.</a><br>
+	└── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_032/./firefox/">firefox</a><br>
+	&nbsp;&nbsp;&nbsp; ├── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_032/./firefox/00-proxy.yml">00-proxy.yml</a><br>
+	&nbsp;&nbsp;&nbsp; └── <a href="https://forge.cloud.silique.fr/stove/rougail-tutorials/src/commit/v1.1_032/./firefox/10-manual.yml">10-manual.yml</a><br>
 <br><br><p>
 
 2 directories, 2 files