customize the default toolbar icon images of a matplotlib graph
I suspect that exactly what you will have to do will depend on you gui toolkit.  The code that you want to look at is in matplotlib/lib/matplotlib/backends and you want to find the class that sub-classes NavigationToolbar2 in which ever backend you are using.
i want to change the default icon images of a matplotplib.
even when i replaced the image with the same name and size from the image location 
i.e. C:\Python27\Lib\site-packages\matplotlib\mpl-data\images\home.png 
its still plotting the the graphs with the same default images.
If I need to change the code of the image location in any file kindly direct me to the code and the code segment.