| area-background |
String |
The background color of the legend item square element. Accepts a valid CSS color string, including HEX and RGB. Defaults to the corresponding node color. |
| area-opacity |
Double |
The opacity of the legend item square element. Defaults to the corresponding node opacity. |
| cursor |
String |
The cursor style of the legend item. |
| visual |
String |
A function that can be used to create a custom visual for the legend items. The available argument fields are: options—The item options. or createVisual—A function for getting the default visual.. |