# themeStyleSheet

> Specifies a style sheet that Unity applies to every UI Document attached to the panel.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine.UIElements](/engine/6000.5/script-reference/unityengine/uielements.md)
* **Assembly:** UnityEngine.UIElementsModule

```csharp
public ThemeStyleSheet themeStyleSheet { get; set; }
```

### Remarks

By default this is the main Unity style sheet, which contains default styles for Unity-supplied elements such as buttons, sliders, and text fields.