title: Get colors from matplotlib style
body: <p>What I would like to achieve:</p>
  
  <p>I want to create several pie charts on one figure. They all share some categories but sometimes have different ones. Obviously I want all of the same categories to have the same colors. </p>
  
  <p>That is why I created a dictionary which links the categories (= labels) to the colors. With that I can specify the colors of the pie chart. But I would like to use the ggplot color (which come with matplotlib.style.style.use('ggplot')). How can I get those colors to feed them into my dictionary?</p>
  
  <pre><code># set colors for labels
  color_dict = {}
  for i in range(0, len(data_categories)):
      color_dict[data_categories[i]] = ???
  
  # apply colors
  ind_label = 0
  for pie_wedge in pie[0]:
      leg = ax[ind].get_legend()
      pie_wedge.set_facecolor(color_dict[labels_0[ind_label]])          
      leg.legendHandles[ind_label].set_color_(color_dict[labels_0[ind_label]])
      ind_label += 1
  </code></pre>