I had pondered how to get a pcolor plot to appear under wx/Boa, but got nowhere, and the author did not reply. It left me suspecting that only matplotlib's line charts are supported with the wx backend; but that seems wrong too, although there is no mention of pcolor except under the pylab class. I also don't see how (?) to subclass properly to get it to work, if it can. It would be a nice user addition; PlotCanvas is fast but simpler functions.