Why is matplotlib.PatchCollection messing with color of the patches?

Question

I make a number of patches like so -

node.shape = RegularPolygon((node.posX, node.posY),
                            6,
                radius = node.radius         


        

Answer 1

self.p = PatchCollection(self.patches, match_original=True) 

By default patch collection over-rides the given color (doc) for the purposes of being able to apply a color map, cycle colors, etc. This is a collection level feature (and what powers the code behind scatter plot).