This node takes the attributes of the javafx.scene.paint.RadialGradient class. see javafx.scene.paint.RadialGradient
In addition, it takes the following attributes:
center - a list of 2 elements with the first value used to set the centerX attribute of the LinearGradient and the second value to set the centerY attribute.
stops - The value of the stops attribute should be a List of 2-element Lists containing an offset and color: [[0.0, black], [1.0, red]]
This node may optionally take one or more stop nodes as content. see Scenegraph.stop
This node creates a radial gradient paint.