Roassal question on Kiviat diagrams and coloring

Hi all!

Does anybody have an advice on how to color Kiviat diagram nodes and
edges based on a nodes property/attribute?

For example, if I wanted to create a Kiviat diagram with weather
information and color all days (nodes and edges) with temperatures above
0 degrees in red and those below 0 degrees in blue... how would I
implement this?

Thank you for any hint!

Sebastian