# Editor.PanelWindow.SetOverlayIcon

```csharp
void SetOverlayIcon(Bitmap icon, string description = null)
```

A small icon over the corner of the window's taskbar button - a badge for a count, a
status. 16 pixels square is what the taskbar shows. Null clears it. The description is
what a screen reader says for it.

### Parameters

- `icon` (`Bitmap`)
- `description` (`string`), default `null`

Declared in [Editor.PanelWindow](/api/Editor.PanelWindow).
Assembly: `Sandbox.Tools`.