Spatial2DView
A Spatial 2D view.
Properties
Background 
Configuration for the background of a view.
- kind: The type of the background. Defaults to BackgroundKind.GradientDark.
 - color: Color used for BackgroundKind.SolidColor.
 
VisualBounds 
Controls the visual bounds of a 2D space view.
- visual_bounds: The visible parts of a 2D space view, in the coordinate space of the scene.