Very low priority request:

Let's say you want to find all variants of Rhododendron and Soot Flower as a cluster.

The issue is that both overlap and it can be hard to tell apart from each other, so you'd have to run the plot multiple times. This can go on furthermore depending on additional items.

Is there a possibility to add multiple different cluster groups, each one with different colors? And maybe the possibility to choose a color when they overlap?