import matplotlib.pyplot as plt
from cycler import cycler
def example_plot(line_style, scatter_style):
    fig, ax = plt.subplots()
    ax.plot([0, 1], [0, 1], **line_style)
    ax.scatter([0, 0, 1, 1], [0, 1, 0, 1], **scatter_style)


line_style = dict(color='C1')
scatter_style = dict(color='C0', ec='C1')

rc_style = {'axes.prop_cycle': cycler(color=['#fff', '#000'])}

plt.style.use('default')
example_plot(line_style, scatter_style)

with plt.style.context(rc_style, after_reset=True):
    example_plot(line_style, scatter_style)

plt.style.use(rc_style)
example_plot(line_style, scatter_style)

plt.style.use('default')
example_plot(line_style, scatter_style)

with plt.style.context(rc_style):
    example_plot(line_style, scatter_style)

plt.style.use(rc_style)
example_plot(line_style, scatter_style)