diff --git a/app/changelog/page.mdx b/app/changelog/page.mdx
index 2eed47b..2f5ae46 100644
--- a/app/changelog/page.mdx
+++ b/app/changelog/page.mdx
@@ -18,7 +18,6 @@ This page lists changes since Working Draft 3. {{ className: 'lead' }}
     - Every field that used to be a URI now uses that entity's `id` field.
     - New endpoints have been defined under `/.versia/v0.6/` to fetch entities by their `id`.
 - Added [References](/types#reference) as a way to refer to other entities.
-- Mandated the usage of `null` for optional fields that are not set, instead of omitting them.
 - Changed usage of "`null` authors" to simply being an optional field.
 - Added more guidelines on [JSON data handling](/json).
 - Clarified the meaning of [Domain](/api/basics#domain) in the context of Versia.
diff --git a/app/extensions/custom-emojis/page.mdx b/app/extensions/custom-emojis/page.mdx
index a1b1e45..86c5bd3 100644
--- a/app/extensions/custom-emojis/page.mdx
+++ b/app/extensions/custom-emojis/page.mdx
@@ -38,14 +38,7 @@ The Custom Emojis extension adds support for adding personalized emojis to feder
             "image/webp": {
                 "content": "https://cdn.example.com/emojis/happy_face.webp",
                 "remote": true,
-                "description": "A happy emoji smiling.",
-                "size": null,
-                "hash": null,
-                "thumbhash": null,
-                "width": null,
-                "height": null,
-                "fps": null,
-                "duration": null
+                "description": "A happy emoji smiling."
             }
         }
     }
@@ -112,14 +105,7 @@ Custom Emojis can be added to any entity with text content. The extension ID is
                             "image/webp": {
                                 "content": "https://cdn.example.com/emojis/happy_face.webp",
                                 "remote": true,
-                                "description": "A happy emoji smiling.",
-                                "size": null,
-                                "hash": null,
-                                "thumbhash": null,
-                                "width": null,
-                                "height": null,
-                                "fps": null,
-                                "duration": null
+                                "description": "A happy emoji smiling."
                             }
                         }
                     }
diff --git a/app/extensions/vanity/page.mdx b/app/extensions/vanity/page.mdx
index 1fde257..704bae7 100644
--- a/app/extensions/vanity/page.mdx
+++ b/app/extensions/vanity/page.mdx
@@ -87,58 +87,26 @@ All properties are optional.
                     {
                         "image/png": {
                             "content": "https://cdn.example.com/ab5081cf-b11f-408f-92c2-7c246f290593/cat_ears.png",
-                            "remote": true,
-                            "description": null,
-                            "size": null,
-                            "hash": null,
-                            "thumbhash": null,
-                            "width": null,
-                            "height": null,
-                            "fps": null,
-                            "duration": null
+                            "remote": true
                         }
                     }
                 ],
                 "avatar_mask": {
                     "image/png": {
                         "content": "https://cdn.example.com/d8c42be1-d0f7-43ef-b4ab-5f614e1beba4/rounded_square.jpeg",
-                        "remote": true,
-                        "description": null,
-                        "size": null,
-                        "hash": null,
-                        "thumbhash": null,
-                        "width": null,
-                        "height": null,
-                        "fps": null,
-                        "duration": null
+                        "remote": true
                     }
                 },
                 "background": {
                     "image/png": {
                         "content": "https://cdn.example.com/6492ddcd-311e-4921-9567-41b497762b09/untitled-file-0019822.png",
-                        "remote": true,
-                        "description": null,
-                        "size": null,
-                        "hash": null,
-                        "thumbhash": null,
-                        "width": null,
-                        "height": null,
-                        "fps": null,
-                        "duration": null
+                        "remote": true
                     }
                 },
                 "audio": {
                     "audio/mpeg": {
                         "content": "https://cdn.example.com/4da2f0d4-4728-4819-83e4-d614e4c5bebc/michael-jackson-thriller.mp3",
-                        "remote": true,
-                        "description": null,
-                        "size": null,
-                        "hash": null,
-                        "thumbhash": null,
-                        "width": null,
-                        "height": null,
-                        "fps": null,
-                        "duration": null
+                        "remote": true
                     }
                 },
                 "pronouns": {
diff --git a/app/structures/content-format/page.mdx b/app/structures/content-format/page.mdx
index a8b1d9d..66db689 100644
--- a/app/structures/content-format/page.mdx
+++ b/app/structures/content-format/page.mdx
@@ -127,9 +127,7 @@ It is a good idea to provide at least two versions of an image (if possible): on
             },
             "thumbhash": "3OcRJYB4d3h/iIeHeEh3eIhw+j2w",
             "width": 1920,
-            "height": 1080,
-            "fps": null,
-            "duration": null
+            "height": 1080
         }
     }
     ```
@@ -138,39 +136,15 @@ It is a good idea to provide at least two versions of an image (if possible): on
     {
         "text/plain": {
             "content": "The consequences of today are determined by the actions of the past. To change your future, alter your decisions today.",
-            "remote": false,
-            "description": null,
-            "size": null,
-            "hash": null,
-            "thumbhash": null,
-            "width": null,
-            "height": null,
-            "fps": null,
-            "duration": null
+            "remote": false
         },
         "text/markdown": {
             "content": "> The consequences of today are determined by the actions of the past.\n> To change your future, alter your decisions today.",
-            "remote": false,
-            "description": null,
-            "size": null,
-            "hash": null,
-            "thumbhash": null,
-            "width": null,
-            "height": null,
-            "fps": null,
-            "duration": null
+            "remote": false
         },
         "text/html": {
             "content": "<blockquote><p>The consequences of today are determined by the actions of the past.</p><p>To change your future, alter your decisions today.</p></blockquote>",
-            "remote": false,
-            "description": null,
-            "size": null,
-            "hash": null,
-            "thumbhash": null,
-            "width": null,
-            "height": null,
-            "fps": null,
-            "duration": null
+            "remote": false
         }
     }
     ```