title: Polarplot: different colors for the two list to be plotted
body: <p>Consider the following code:</p>
  
  <pre><code>import numpy as np
  from numpy import *
  from matplotlib.pyplot import *
  import matplotlib.pyplot as plt
  from mpmath import *
  import random
  
  def graphMesure(listeAlpha,listeBeta):
      # Compute areas and colors
      r = np.asarray([1]*len(listeAlpha)+[0.5]*len(listeBeta))
      colors = np.asarray([0.005]*len(listeAlpha)+[0.2]*len(listeBeta))
      area = 200*r**2
  
      fig = plt.figure()
  
      ax = fig.add_subplot(111, projection='polar')
      ax.set_ylim([0,1.25])
      c = ax.scatter(listeAlpha+listeBeta, r, c=colors, s=area, cmap='hsv', alpha=1)
  
  graphMesure([0.5,0.2,0.3],[0.7,0.8,0.2])
  </code></pre>
  
  <p>All the color on my polarplot are the same. I thought that specifying float number for colors like I did would make them of different colors.</p>
  
  <p>How can I for example have the first list given in parameter be plotted as blue and the second one as red ?</p>