feat: Add doc for node type decorator

src/developer/nodes-system/index.rst

@@ -8,4 +8,5 @@ Node system
    intro
    node_types
    node_type_fields
+   node_type_decorators
    nodes

src/developer/nodes-system/node_type_decorators.rst

@@ -0,0 +1,103 @@
+.. _node_type_decorators:
+
+
+Node-type Decorators
+====================
+
+Roadiz allows you to customize any node-types and node-type fields **non-structural** properties.
+This can be handy if you need to change node-types appearence (display names, colors) in Back-office without needing to update your project configuration or emptying caches.
+
+Entity representation
+---------------------
+
+This decoration is represented by the NodeTypeDecorator entity, which contains three fields :
+
+    - ``path``
+    - ``property``
+    - ``value``
+
+``path`` property :
+^^^^^^^^^^^^^^^^^^^
+
+This property is used to define the *node type* or *node type field* we want to customize.
+
+It consists of the ``node type name`` and the ``node type field name`` separated by a ``dot``.
+
+.. note::
+    Exemple of ``path`` for the content field of a Page :
+
+    ``Page.content``
+
+.. warning::
+    For decorate an property of a node type simply leave empty after the dot. :
+
+    ``Page.``
+
+
+``property`` property :
+^^^^^^^^^^^^^^^^^^^
+
+This property is used to define the *node type property* or *node type field property* we want to customize.
+
+It consists of a ``Enum`` which depends on the path containing a field or not.
+
+**List of the property for node type :**
+
+#. displayName
+#. description
+#. color
+
+**List of the property for node type field :**
+
+#. field_label
+#. field_universal
+#. field_description
+#. field_placeholder
+#. field_visible
+#. field_min_length
+#. field_max_length
+
+.. note::
+    Example of ``property`` for the content field of a Page :
+
+    ``field_label``
+
+.. warning::
+    You can't attribute a ``node type`` property to a ``path`` with field
+    (exemple: path = ``Page.`` and property = ``field_label``)
+
+    You can't attribute a ``node type field`` property to a ``path`` without field
+    (exemple: path = ``Page.content`` and property = ``displayName``)
+
+``value`` property :
+^^^^^^^^^^^^^^^^^^^
+
+This property is used to override the default value. Default values come from your `node_types/*.yaml` files.
+
+It consists of a string linked to its property type.
+
+List of the property type :
+
+    - **display_name** => text type
+    - **description** => text type
+    - **color** => hexadecimal color type
+    - **field_label** => text type
+    - **field_universal** => boolean type
+    - **field_description** => text type
+    - **field_placeholder** => text type
+    - **field_visible** => boolean type
+    - **field_min_length** => integer type
+    - **field_max_length** => integer type
+
+.. note::
+    Exemple of ``value`` on the ``field_label`` property :
+    ``'A text Label'``
+
+    Exemple of ``value`` on the ``field_visible`` property :
+    ``'true'``
+
+    Exemple of ``value`` on the ``color`` property :
+    ``'#FF1185'``
+
+    Exemple of ``value`` on the ``field_max_length`` property :
+    ``'15'``