--- name: DigitsRigDescription last_updated: 2026-06-10T23:09:11Z inherits: - Instance - Object type: class memory_category: Animation --- # Class: DigitsRigDescription ## Description Enables interoperability of animations across hand rigs and drives the hand finger solver. Each `DigitsRigDescription` maps the 15 phalanx joints of one hand (5 fingers with 3 joints each) to engine instances, stores their T-pose adjustments, and exposes forward- and inverse-kinematics helpers for controlling finger poses at runtime. ## Properties ### Property: DigitsRigDescription.Index1 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The [Motor6D](/docs/reference/engine/classes/Motor6D.md), [AnimationConstraint](/docs/reference/engine/classes/AnimationConstraint.md), or [Bone](/docs/reference/engine/classes/Bone.md) instance mapped to the proximal (first) phalanx of the index finger. ### Property: DigitsRigDescription.Index1TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Index1` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.Index2 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The `Instance` mapped to the medial (second) phalanx of the index finger. ### Property: DigitsRigDescription.Index2TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Index2` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.Index3 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The `Instance` mapped to the distal (third) phalanx of the index finger. ### Property: DigitsRigDescription.Index3TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Index3` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.IndexRange ```json { "type": "Vector3", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Range", "capabilities": [ "Animation" ] } ``` A `Vector3` describing the motion range of the index finger, used by the finger solver. ### Property: DigitsRigDescription.IndexSize ```json { "type": "float", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Size", "capabilities": [ "Animation" ] } ``` Size of the index finger, used by the finger solver to preserve contacts. ### Property: DigitsRigDescription.Middle1 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The `Instance` mapped to the proximal (first) phalanx of the middle finger. ### Property: DigitsRigDescription.Middle1TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Middle1` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.Middle2 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The `Instance` mapped to the medial (second) phalanx of the middle finger. ### Property: DigitsRigDescription.Middle2TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Middle2` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.Middle3 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The `Instance` mapped to the distal (third) phalanx of the middle finger. ### Property: DigitsRigDescription.Middle3TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Middle3` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.MiddleRange ```json { "type": "Vector3", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Range", "capabilities": [ "Animation" ] } ``` A `Vector3` describing the motion range of the middle finger, used by the finger solver and scalable-property system. ### Property: DigitsRigDescription.MiddleSize ```json { "type": "float", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Size", "capabilities": [ "Animation" ] } ``` Scale factor for the middle finger, used when the rig is scaled through the scalable-property system. ### Property: DigitsRigDescription.Pinky1 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The `Instance` mapped to the proximal (first) phalanx of the pinky finger. ### Property: DigitsRigDescription.Pinky1TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Pinky1` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.Pinky2 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The `Instance` mapped to the medial (second) phalanx of the pinky finger. ### Property: DigitsRigDescription.Pinky2TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Pinky2` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.Pinky3 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The `Instance` mapped to the distal (third) phalanx of the pinky finger. ### Property: DigitsRigDescription.Pinky3TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Pinky3` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.PinkyRange ```json { "type": "Vector3", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Range", "capabilities": [ "Animation" ] } ``` A `Vector3` describing the motion range of the pinky finger, used by the finger solver and scalable-property system. ### Property: DigitsRigDescription.PinkySize ```json { "type": "float", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Size", "capabilities": [ "Animation" ] } ``` Scale factor for the pinky finger, used when the rig is scaled through the scalable-property system. ### Property: DigitsRigDescription.Ring1 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The `Instance` mapped to the proximal (first) phalanx of the ring finger. ### Property: DigitsRigDescription.Ring1TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Ring1` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.Ring2 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The `Instance` mapped to the medial (second) phalanx of the ring finger. ### Property: DigitsRigDescription.Ring2TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Ring2` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.Ring3 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The `Instance` mapped to the distal (third) phalanx of the ring finger. ### Property: DigitsRigDescription.Ring3TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Ring3` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.RingRange ```json { "type": "Vector3", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Range", "capabilities": [ "Animation" ] } ``` A `Vector3` describing the motion range of the ring finger, used by the finger solver and scalable-property system. ### Property: DigitsRigDescription.RingSize ```json { "type": "float", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Size", "capabilities": [ "Animation" ] } ``` Scale factor for the ring finger, used when the rig is scaled through the scalable-property system. ### Property: DigitsRigDescription.Side ```json { "type": "DigitsRigDescriptionSide", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Data", "capabilities": [ "Animation" ] } ``` Which hand this description belongs to: `None`, `Left`, or `Right`. Used when mapping `HandRigLabel` joints to the corresponding `HumanoidRigLabel` entries on the parent `HumanoidRigDescription`. ### Property: DigitsRigDescription.Thumb1 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The `Instance` mapped to the proximal (first) phalanx of the thumb. ### Property: DigitsRigDescription.Thumb1TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Thumb1` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.Thumb2 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The `Instance` mapped to the medial (second) phalanx of the thumb. ### Property: DigitsRigDescription.Thumb2TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Thumb2` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.Thumb3 ```json { "type": "Instance", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Mapping", "capabilities": [ "Animation" ] } ``` The `Instance` mapped to the distal (third) phalanx of the thumb. ### Property: DigitsRigDescription.Thumb3TposeAdjustment ```json { "type": "CFrame", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Tpose", "capabilities": [ "Animation" ] } ``` `CoordinateFrame` applied to `Thumb3` to normalize the joint into its canonical T-pose orientation before retargeting or solving. ### Property: DigitsRigDescription.ThumbRange ```json { "type": "Vector3", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Range", "capabilities": [ "Animation" ] } ``` A `Vector3` describing the motion range of the thumb, used by the finger solver and scalable-property system. ### Property: DigitsRigDescription.ThumbSize ```json { "type": "float", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Size", "capabilities": [ "Animation" ] } ``` Scale factor for the thumb, used when the rig is scaled through the scalable-property system. ## Methods ### Method: DigitsRigDescription:GetFingerControl **Signature:** `DigitsRigDescription:GetFingerControl(fingerIndex: int): Vector3` Returns the current control `Vector3` for the finger at the given 1-based index (1 = Thumb … 5 = Pinky). The components are: - **X** — extension in `[0, 1]`: `0` is fully curled, `1` is fully extended. - **Y** — lateral (side) rotation in `[-1, 1]`. - **Z** — axial (twist) rotation in `[-1, 1]`. *Security: None · Thread Safety: Unsafe · Capabilities: Animation* **Parameters:** | Name | Type | Default | Description | |------|------|---------|-------------| | `fingerIndex` | `int` | | | **Returns:** `Vector3` ### Method: DigitsRigDescription:GetFingerTip **Signature:** `DigitsRigDescription:GetFingerTip(fingerIndex: int): Vector3` Returns the world-space position of the fingertip for the finger at the given 1-based index (1 = Thumb … 5 = Pinky). Not yet implemented; currently returns `Vector3.zero`. *Security: None · Thread Safety: Unsafe · Capabilities: Animation* **Parameters:** | Name | Type | Default | Description | |------|------|---------|-------------| | `fingerIndex` | `int` | | | **Returns:** `Vector3` ### Method: DigitsRigDescription:SetFingerControl **Signature:** `DigitsRigDescription:SetFingerControl(fingerIndex: int, control: Vector3): ()` Drives the three-joint chain of the finger at the given 1-based index (1 = Thumb … 5 = Pinky) using forward kinematics. The `control` components are clamped before application: - **X** — extension, clamped to `[0, 1]`. - **Y** — lateral rotation, clamped to `[-1, 1]` (maps to ±50°). - **Z** — axial rotation, clamped to `[-1, 1]` (maps to ±50°). Joint angles for the three phalanges are computed via Ptolemy's theorem applied to the chain lengths. *Security: None · Thread Safety: Unsafe · Capabilities: Animation* **Parameters:** | Name | Type | Default | Description | |------|------|---------|-------------| | `fingerIndex` | `int` | | | | `control` | `Vector3` | | | **Returns:** `()` ### Method: DigitsRigDescription:SetFingerTip **Signature:** `DigitsRigDescription:SetFingerTip(fingerIndex: int, point: Vector3): ()` Moves the fingertip of the finger at the given 1-based index (1 = Thumb … 5 = Pinky) toward the world-space target `point` using inverse kinematics. The solver computes the required extension, lateral, and axial control values and then calls `SetFingerControl` internally. *Security: None · Thread Safety: Unsafe · Capabilities: Animation* **Parameters:** | Name | Type | Default | Description | |------|------|---------|-------------| | `fingerIndex` | `int` | | | | `point` | `Vector3` | | | **Returns:** `()` ## Inherited Members ### From [Instance](/docs/reference/engine/classes/Instance.md) - **Property `Archivable`** (`boolean`): Determines if an Instance and its descendants can be cloned using - **Property `archivable`** (`boolean`): *(deprecated, hidden)* - **Property `Capabilities`** (`SecurityCapabilities`): The set of capabilities allowed to be used for scripts inside this - **Property `Name`** (`string`): A non-unique identifier of the Instance. - **Property `Parent`** (`Instance`): Determines the hierarchical parent of the Instance. - **Property `PredictionMode`** (`PredictionMode`): - **Property `RobloxLocked`** (`boolean`): A deprecated property that used to protect CoreGui objects. *(hidden)* - **Property `Sandboxed`** (`boolean`): When enabled, the instance can only access abilities in its `Capabilities` - **Property `UniqueId`** (`UniqueId`): A unique identifier for the instance. - **Method `AddTag(tag: string): ()`**: Applies a tag to the instance. - **Method `children(): Instances`**: Returns an array of the object's children. *(deprecated)* - **Method `ClearAllChildren(): ()`**: This method destroys all of an instance's children. - **Method `Clone(): Instance`**: Create a copy of an instance and all its descendants, ignoring instances - **Method `clone(): Instance`**: *(deprecated)* - **Method `Destroy(): ()`**: Sets the Instance.Parent property to `nil`, locks the - **Method `destroy(): ()`**: *(deprecated)* - **Method `FindFirstAncestor(name: string): Instance?`**: Returns the first ancestor of the Instance whose - **Method `FindFirstAncestorOfClass(className: string): Instance?`**: Returns the first ancestor of the Instance whose - **Method `FindFirstAncestorWhichIsA(className: string): Instance?`**: Returns the first ancestor of the Instance for whom - **Method `FindFirstChild(name: string, recursive?: boolean): Instance?`**: Returns the first child of the Instance found with the given name. - **Method `findFirstChild(name: string, recursive?: boolean): Instance`**: *(deprecated)* - **Method `FindFirstChildOfClass(className: string): Instance?`**: Returns the first child of the Instance whose - **Method `FindFirstChildWhichIsA(className: string, recursive?: boolean): Instance?`**: Returns the first child of the Instance for whom - **Method `FindFirstDescendant(name: string): Instance?`**: Returns the first descendant found with the given Instance.Name. - **Method `GetActor(): Actor?`**: Returns the Actor associated with the Instance, if any. - **Method `GetAttribute(attribute: string): Variant`**: Returns the value which has been assigned to the given attribute name. - **Method `GetAttributeChangedSignal(attribute: string): RBXScriptSignal`**: Returns an event that fires when the given attribute changes. - **Method `GetAttributes(): Dictionary`**: Returns a dictionary of the instance's attributes. - **Method `GetChildren(): Instances`**: Returns an array containing all of the instance's children. - **Method `getChildren(): Instances`**: *(deprecated)* - **Method `GetDebugId(scopeLength?: int): string`**: Returns a coded string of the debug ID used internally by Roblox. - **Method `GetDescendants(): Instances`**: Returns an array containing all of the descendants of the instance. - **Method `GetFullName(): string`**: Returns a string describing the instance's ancestry. - **Method `GetStyled(name: string, selector: string?): Variant`**: Returns the styled or explicitly modified value of the specified property, - **Method `GetStyledPropertyChangedSignal(property: string): RBXScriptSignal`**: - **Method `GetTags(): Array`**: Gets an array of all tags applied to the instance. - **Method `HasTag(tag: string): boolean`**: Check whether the instance has a given tag. - **Method `IsAncestorOf(descendant: Instance): boolean`**: Returns true if an Instance is an ancestor of the given - **Method `IsDescendantOf(ancestor: Instance): boolean`**: Returns `true` if an Instance is a descendant of the given - **Method `isDescendantOf(ancestor: Instance): boolean`**: *(deprecated)* - **Method `IsPropertyModified(property: string): boolean`**: Returns `true` if the value stored in the specified property is not equal - **Method `QueryDescendants(selector: string): Instances`**: - **Method `Remove(): ()`**: Sets the object's `Parent` to `nil`, and does the same for all its *(deprecated)* - **Method `remove(): ()`**: *(deprecated)* - **Method `RemoveTag(tag: string): ()`**: Removes a tag from the instance. - **Method `ResetPropertyToDefault(property: string): ()`**: Resets a property to its default value. - **Method `SetAttribute(attribute: string, value: Variant): ()`**: Sets the attribute with the given name to the given value. - **Method `WaitForChild(childName: string, timeOut: double): Instance`**: Returns the child of the Instance with the given name. If the - **Event `AncestryChanged`**: Fires when the Instance.Parent property of this object or one of - **Event `AttributeChanged`**: Fires whenever an attribute is changed on the Instance. - **Event `ChildAdded`**: Fires after an object is parented to this Instance. - **Event `childAdded`**: *(deprecated)* - **Event `ChildRemoved`**: Fires after a child is removed from this Instance. - **Event `DescendantAdded`**: Fires after a descendant is added to the Instance. - **Event `DescendantRemoving`**: Fires immediately before a descendant of the Instance is removed. - **Event `Destroying`**: Fires immediately before (or is deferred until after) the instance is - **Event `StyledPropertiesChanged`**: Fires whenever any style property is changed on the instance, including ### From [Object](/docs/reference/engine/classes/Object.md) - **Property `ClassName`** (`string`): A read-only string representing the class this Object belongs to. - **Property `className`** (`string`): *(deprecated)* - **Method `GetPropertyChangedSignal(property: string): RBXScriptSignal`**: Get an event that fires when a given property of the object changes. - **Method `IsA(className: string): boolean`**: Returns true if an object's class matches or inherits from a given class. - **Method `isA(className: string): boolean`**: *(deprecated)* - **Event `Changed`**: Fires immediately after a property of the object changes, with some