Add backgroundcolor and fontsize

Better to see a single label than several labels at the same position.

Overlap/plot_traj.py

@@ -67,7 +67,8 @@ def plot_nbunch(G, nbunch, color = '#1f78b4', label = None, ax = None):
             if is_node_type(G, n, label):
                 xy = ax.projection.transform_point(*pos[n], src_crs)
                 ax.annotate(str(n), xy, color = color, xytext = (2, 2),
-                            textcoords = 'offset points')
+                            textcoords = 'offset points',
+                            backgroundcolor = "white", fontsize = "xx-small")
 
 def plot_all_components(G, label):
     for component, color in zip(G.graph["component_list"], color_iter):