#9920 #9922
Errorbars now

1. accept marker options, such as mfc (used to crash)
2. follows prop_cycle (used to ignore it and always draw solid line)

The first one is important for making black and white plots (clear and filled squares) - cheaper to publish than color graphs. Property cycle fix is nice for plotting several lines at once from pandas DataFrame, for instance.

import matplotlib.pyplot as plt
plt.rc(["xtick","ytick"],labelsize=16)
plt.rc("lines", lw=3, markersize=12, markeredgewidth=3)
plt.rc("errorbar", capsize=5)
plt.rc("axes", prop_cycle="cycler(ls=['--',':'],marker=['s','s'],mfc=['k','w'])")
plt.errorbar(x=[2,4,10],y=[3,2,4],yerr=0.5)
plt.errorbar(x=[2,4,10],y=[6,4,2],yerr=0.5)
plt.show()