# One

> UI Toolkit can bind only one texture to the shader at once. No dynamic branching is required to select the texture.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine.UIElements](/engine/6000.3/script-reference/unityengine/uielements.md)
* **Assembly:** UnityEngine.UIElementsModule

```csharp
One = 1
```