diff --git a/discord/asset.py b/discord/asset.py
index 9613b488b..6af5777c7 100644
--- a/discord/asset.py
+++ b/discord/asset.py
@@ -224,6 +224,15 @@ class Asset(AssetMixin):
             animated=animated,
         )
 
+    @classmethod
+    def _from_avatar_decoration(cls, state: _State, user_id: int, decoration: str) -> Self:
+        return cls(
+            state,
+            url=f'{cls.BASE}/avatar-decorations/{user_id}/{decoration}.png?size=128',
+            key=decoration,
+            animated=False,
+        )
+
     @classmethod
     def _from_guild_avatar(cls, state: _State, guild_id: int, member_id: int, avatar: str) -> Self:
         animated = avatar.startswith('a_')
diff --git a/discord/types/user.py b/discord/types/user.py
index b394dd802..cbeed6879 100644
--- a/discord/types/user.py
+++ b/discord/types/user.py
@@ -73,6 +73,7 @@ class User(PartialUser, total=False):
     premium_usage_flags: int
     premium_type: PremiumType
     public_flags: int
+    avatar_decoration: Optional[str]
     banner: Optional[str]
     accent_color: Optional[int]
     bio: str
diff --git a/discord/user.py b/discord/user.py
index b22ee4582..b5626b5d5 100644
--- a/discord/user.py
+++ b/discord/user.py
@@ -238,6 +238,7 @@ class BaseUser(_UserTag):
         'id',
         'discriminator',
         '_avatar',
+        '_avatar_decoration',
         '_banner',
         '_accent_colour',
         'bot',
@@ -254,6 +255,7 @@ class BaseUser(_UserTag):
         system: bool
         _state: ConnectionState
         _avatar: Optional[str]
+        _avatar_decoration: Optional[str]
         _banner: Optional[str]
         _accent_colour: Optional[int]
         _public_flags: int
@@ -285,6 +287,7 @@ class BaseUser(_UserTag):
         self.id = int(data['id'])
         self.discriminator = data['discriminator']
         self._avatar = data['avatar']
+        self._avatar_decoration = data.get('avatar_decoration')
         self._banner = data.get('banner', None)
         self._accent_colour = data.get('accent_color', None)
         self._public_flags = data.get('public_flags', 0)
@@ -299,24 +302,28 @@ class BaseUser(_UserTag):
         self.id = user.id
         self.discriminator = user.discriminator
         self._avatar = user._avatar
+        self._avatar_decoration = user._avatar_decoration
         self._banner = user._banner
         self._accent_colour = user._accent_colour
+        self._public_flags = user._public_flags
         self.bot = user.bot
+        self.system = user.system
         self._state = user._state
-        self._public_flags = user._public_flags
 
         return self
 
-    def _to_minimal_user_json(self) -> Dict[str, Any]:
-        return {
+    def _to_minimal_user_json(self) -> UserPayload:
+        user: UserPayload = {
             'username': self.name,
             'id': self.id,
             'avatar': self._avatar,
+            'avatar_decoration': self._avatar_decoration,
             'discriminator': self.discriminator,
             'bot': self.bot,
             'system': self.system,
             'public_flags': self._public_flags,
         }
+        return user
 
     @property
     def voice(self) -> Optional[VoiceState]:
@@ -354,6 +361,18 @@ class BaseUser(_UserTag):
         """
         return self.avatar or self.default_avatar
 
+    @property
+    def avatar_decoration(self) -> Optional[Asset]:
+        """Optional[:class:`Asset`]: Returns an :class:`Asset` for the avatar decoration the user has.
+
+        If the user does not have a avatar decoration, ``None`` is returned.
+
+        .. versionadded:: 2.0
+        """
+        if self._avatar_decoration is not None:
+            return Asset._from_avatar_decoration(self._state, self.id, self._avatar_decoration)
+        return None
+
     @property
     def banner(self) -> Optional[Asset]:
         """Optional[:class:`Asset`]: Returns the user's banner asset, if available.
@@ -668,6 +687,7 @@ class ClientUser(BaseUser):
         *,
         username: str = MISSING,
         avatar: Optional[bytes] = MISSING,
+        avatar_decoration: Optional[bool] = MISSING,
         password: str = MISSING,
         new_password: str = MISSING,
         email: str = MISSING,
@@ -717,11 +737,19 @@ class ClientUser(BaseUser):
         avatar: Optional[:class:`bytes`]
             A :term:`py:bytes-like object` representing the image to upload.
             Could be ``None`` to denote no avatar.
+        avatar_decoration: Optional[:class:`bool`]
+            A :term:`py:bytes-like object` representing the image to upload.
+            Could be ``None`` to denote no avatar decoration.
+
+            .. versionadded:: 2.0
         banner: :class:`bytes`
             A :term:`py:bytes-like object` representing the image to upload.
             Could be ``None`` to denote no banner.
-        accent_colour/_color: :class:`Colour`
+        accent_colour: :class:`Colour`
             A :class:`Colour` object of the colour you want to set your profile to.
+        accent_color: :class:`Color`
+            A :class:`Color` object of the color you want to set your profile to.
+            Alias of `accent_colour`.
         bio: :class:`str`
             Your "about me" section.
             Could be ``None`` to represent no bio.
diff --git a/discord/webhook/async_.py b/discord/webhook/async_.py
index e9c033461..5cfb2fd69 100644
--- a/discord/webhook/async_.py
+++ b/discord/webhook/async_.py
@@ -977,7 +977,7 @@ class Webhook(BaseWebhook):
             'name': name,
             'channel_id': channel.id,
             'guild_id': channel.guild.id,
-            'user': {'username': user.name, 'discriminator': user.discriminator, 'id': user.id, 'avatar': user._avatar},
+            'user': user._to_minimal_user_json(),
         }
 
         state = channel._state