transparent background match ... all colors

IPython/kernel/zmq/pylab/config.py

@@ -39,8 +39,8 b' class InlineBackend(InlineBackendConfig):'
     # make that fit.
     rc = Dict({'figure.figsize': (6.0,4.0),
         # play nicely with white background in the Qt and notebook frontend
-        'figure.facecolor': 'white',
-        'figure.edgecolor': 'white',
+        'figure.facecolor': (1,1,1,0),
+        'figure.edgecolor': (1,1,1,0),
         # 12pt labels get cutoff on 6x4 logplots, so use 10pt.
         'font.size': 10,
         # 72 dpi matches SVG/qtconsole