diff --git a/toml-spec/spec/spec.generated.json b/toml-spec/spec/spec.generated.json
index 930ad697..b7b5ce2d 100644
--- a/toml-spec/spec/spec.generated.json
+++ b/toml-spec/spec/spec.generated.json
@@ -641,6 +641,49 @@
         }
       ]
     },
+    "AnimationCurve": {
+      "description": "Describes a window animation curve.\n",
+      "anyOf": [
+        {
+          "type": "string",
+          "description": "One of the supported curve presets.\n",
+          "enum": [
+            "linear",
+            "ease",
+            "ease-in",
+            "ease-out",
+            "ease-in-out"
+          ]
+        },
+        {
+          "type": "array",
+          "description": "A custom CSS-style cubic-bezier curve as four numbers:\n`x1`, `y1`, `x2`, and `y2`.\n\nThe implicit endpoints are `(0, 0)` and `(1, 1)`. `x1` and `x2` must\nbe between `0` and `1`.\n",
+          "items": {
+            "type": "number",
+            "description": ""
+          }
+        }
+      ]
+    },
+    "Animations": {
+      "description": "Describes window animation settings.\n\n- Example:\n\n  ```toml\n  [animations]\n  enabled = true\n  duration-ms = 160\n  curve = [0.25, 0.1, 0.25, 1.0]\n  ```\n",
+      "type": "object",
+      "properties": {
+        "enabled": {
+          "type": "boolean",
+          "description": "Enables or disables window animations.\n\nThe default is `false`.\n"
+        },
+        "duration-ms": {
+          "type": "integer",
+          "description": "Sets the animation duration in milliseconds.\n\nThe default is `160`.\n"
+        },
+        "curve": {
+          "description": "Sets the animation curve.\n\nThe default is `ease-out`.\n",
+          "$ref": "#/$defs/AnimationCurve"
+        }
+      },
+      "required": []
+    },
     "BarPosition": {
       "type": "string",
       "description": "The position of the bar.",
@@ -1085,6 +1128,10 @@
           "description": "Configures the ui-drag settings.\n\n- Example:\n\n  ```toml\n  ui-drag = { enabled = false, threshold = 20 }\n  ```\n",
           "$ref": "#/$defs/UiDrag"
         },
+        "animations": {
+          "description": "Configures window animations.\n\nAnimations are disabled by default.\n\n- Example:\n\n  ```toml\n  [animations]\n  enabled = true\n  duration-ms = 160\n  curve = \"ease-out\"\n  ```\n",
+          "$ref": "#/$defs/Animations"
+        },
         "xwayland": {
           "description": "Configures the Xwayland settings.\n\n- Example:\n\n  ```toml\n  xwayland = { scaling-mode = \"downscaled\" }\n  ```\n",
           "$ref": "#/$defs/Xwayland"
diff --git a/toml-spec/spec/spec.generated.md b/toml-spec/spec/spec.generated.md
index 43e9f20d..a1c4ff29 100644
--- a/toml-spec/spec/spec.generated.md
+++ b/toml-spec/spec/spec.generated.md
@@ -942,6 +942,96 @@ This table is a tagged union. The variant is determined by the `type` field. It
     The numbers should be integers.
 
 
+<a name="types-AnimationCurve"></a>
+### `AnimationCurve`
+
+Describes a window animation curve.
+
+Values of this type should have one of the following forms:
+
+#### A string
+
+One of the supported curve presets.
+
+The string should have one of the following values:
+
+- `linear`:
+
+  No easing.
+
+- `ease`:
+
+  The CSS `ease` curve.
+
+- `ease-in`:
+
+  The CSS `ease-in` curve.
+
+- `ease-out`:
+
+  The CSS `ease-out` curve.
+
+- `ease-in-out`:
+
+  The CSS `ease-in-out` curve.
+
+
+#### An array
+
+A custom CSS-style cubic-bezier curve as four numbers:
+`x1`, `y1`, `x2`, and `y2`.
+
+The implicit endpoints are `(0, 0)` and `(1, 1)`. `x1` and `x2` must
+be between `0` and `1`.
+
+Each element of this array should be a number.
+
+
+<a name="types-Animations"></a>
+### `Animations`
+
+Describes window animation settings.
+
+- Example:
+
+  ```toml
+  [animations]
+  enabled = true
+  duration-ms = 160
+  curve = [0.25, 0.1, 0.25, 1.0]
+  ```
+
+Values of this type should be tables.
+
+The table has the following fields:
+
+- `enabled` (optional):
+
+  Enables or disables window animations.
+
+  The default is `false`.
+
+  The value of this field should be a boolean.
+
+- `duration-ms` (optional):
+
+  Sets the animation duration in milliseconds.
+
+  The default is `160`.
+
+  The value of this field should be a number.
+
+  The numbers should be integers.
+
+- `curve` (optional):
+
+  Sets the animation curve.
+
+  The default is `ease-out`.
+
+  The value of this field should be a [AnimationCurve](#types-AnimationCurve).
+
+
 <a name="types-BarPosition"></a>
 ### `BarPosition`
 
@@ -2169,6 +2259,23 @@ The table has the following fields:
 
   The value of this field should be a [UiDrag](#types-UiDrag).
 
+- `animations` (optional):
+
+  Configures window animations.
+
+  Animations are disabled by default.
+
+  - Example:
+
+    ```toml
+    [animations]
+    enabled = true
+    duration-ms = 160
+    curve = "ease-out"
+    ```
+
+  The value of this field should be a [Animations](#types-Animations).
+
 - `xwayland` (optional):
 
   Configures the Xwayland settings.
@@ -5670,4 +5777,3 @@ The table has the following fields:
 
   The value of this field should be a [XScalingMode](#types-XScalingMode).
 
-
diff --git a/toml-spec/spec/spec.yaml b/toml-spec/spec/spec.yaml
index aa6789da..7d2abfb7 100644
--- a/toml-spec/spec/spec.yaml
+++ b/toml-spec/spec/spec.yaml
@@ -2942,6 +2942,22 @@ Config:
           ```toml
           ui-drag = { enabled = false, threshold = 20 }
           ```
+    animations:
+      ref: Animations
+      required: false
+      description: |
+        Configures window animations.
+
+        Animations are disabled by default.
+
+        - Example:
+
+          ```toml
+          [animations]
+          enabled = true
+          duration-ms = 160
+          curve = "ease-out"
+          ```
     xwayland:
       ref: Xwayland
       required: false
@@ -3655,6 +3671,74 @@ UiDrag:
         The default is `10`.
 
 
+Animations:
+  kind: table
+  description: |
+    Describes window animation settings.
+
+    - Example:
+
+      ```toml
+      [animations]
+      enabled = true
+      duration-ms = 160
+      curve = [0.25, 0.1, 0.25, 1.0]
+      ```
+  fields:
+    enabled:
+      kind: boolean
+      required: false
+      description: |
+        Enables or disables window animations.
+
+        The default is `false`.
+    duration-ms:
+      kind: number
+      integer_only: true
+      required: false
+      description: |
+        Sets the animation duration in milliseconds.
+
+        The default is `160`.
+    curve:
+      ref: AnimationCurve
+      required: false
+      description: |
+        Sets the animation curve.
+
+        The default is `ease-out`.
+
+
+AnimationCurve:
+  kind: variable
+  description: |
+    Describes a window animation curve.
+  variants:
+    - kind: string
+      description: |
+        One of the supported curve presets.
+      values:
+        - value: linear
+          description: No easing.
+        - value: ease
+          description: The CSS `ease` curve.
+        - value: ease-in
+          description: The CSS `ease-in` curve.
+        - value: ease-out
+          description: The CSS `ease-out` curve.
+        - value: ease-in-out
+          description: The CSS `ease-in-out` curve.
+    - kind: array
+      items:
+        kind: number
+      description: |
+        A custom CSS-style cubic-bezier curve as four numbers:
+        `x1`, `y1`, `x2`, and `y2`.
+
+        The implicit endpoints are `(0, 0)` and `(1, 1)`. `x1` and `x2` must
+        be between `0` and `1`.
+
+
 Xwayland:
   kind: table
   description: |