Set stem3d defaults to match 2D and mpl20 style.

Author: QuLogic

lib/mpl_toolkits/mplot3d/axes3d.py

@@ -3288,7 +3288,7 @@ def get_tightbbox(self, renderer, call_axes_locator=True,
                     batch.append(axis_bb)
         return mtransforms.Bbox.union(batch)
 
-    def stem(self, x, y, z, *, linefmt='b-', markerfmt='bo', basefmt='r-',
+    def stem(self, x, y, z, *, linefmt='C0-', markerfmt='C0o', basefmt='C3-',
              bottom=0, label=None, zdir='z'):
         """
         Create a 3D stem plot.