def _create_color_generator():
    """Create a generator which will cycle through a list of default matplotlib colors"""
    from itertools import cycle
    colors = [u'#1f77b4', u'#ff7f0e', u'#2ca02c', u'#d62728', u'#9467bd',
        u'#8c564b', u'#e377c2', u'#7f7f7f', u'#bcbd22', u'#17becf']
    return cycle(colors)
