Data limit defines the maximum number of data points the visualization supports. Can be set to -1 to indicate there is no limit.
Shape of elements in a categorical (swatch) legend. Possible values are circle,
rectangle, square, triangle, cross, donut, line, diamond, star,
triangle-down, triangle-up, triangle-left or triangle-right.
Can also be null to indicate that the host should use a default shape or the
string none to indicate that no shape should be displayed.
Slot limits define the number of supported tuples in a slot. Implemented as a map from 'slot name' to 'limit value'. If you don't want the limit the slot, remove the slot name from the map or set its value to -1.
The MetaInfo class holds meta information for the visualization. The RenderBase class owns an instance of MetaInfo and Subclasses are allowed to access and change attributes. See RenderBase.meta for more information and some sample code.