# OsColours class

Namespace: [Grasshopper2.Eto.Drawing](https://developer.rhino3d.com/api/gh2/namespace/grasshopper2.eto.drawing.md) · Assembly: [Grasshopper2](https://developer.rhino3d.com/api/gh2/assembly/grasshopper2.md)

```cs
public static class OsColours
```

## Properties

- [WindowBackground](https://developer.rhino3d.com/api/gh2/type/grasshopper2.eto.drawing.oscolours/windowbackground.md): (static) Gets the OS window background colour. This returns a more consistent value than `SystemColors.WindowBackground` across various operating systems.