# enableAlphaDilation

> Sets the boundary padding pixels alpha to 0 when packed into a Sprite Atlas.

## Definition

* **Type:** Property
* **Namespace:** [UnityEditor.U2D](/engine/7000.0/script-reference/unityeditor/u2d.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public bool enableAlphaDilation { get; set; }
```