Density is the newest Marks type, introduced in Tableau 2018.3 and represented with the following icon:
This new mark fills a gap: to show the Density of Marks. The superposition of multiple Marks determines the color intensity. It's a straightforward Marks type; you can use it in various cases, as long as you have many Marks overlapping.
In the following example, you can see that the concentration of customers by Sales and Quantity:
The most important property for the Density Mark is the color. Thanks to the intensity ...
