import matplotlib.pyplot as plt
import numpy as np
from cycler import cycler

x = np.linspace(0,1,10)
B = [0,1,2,3]
colors = ['k', 'tab:gray', 'tab:red', 'tab:blue']

# Desired workflow
fig1,ax1 = plt.subplots()
ax1.set_prop_cycle(cycler('c',colors)+
                   cycler('markerfacecolor',colors)+
                   cycler('markerfacecoloralt',colors[::-1]))
for b in B:
    ax1.plot(x,x+b,'-o',markersize=7,fillstyle='top')

# Workaround to get above plot
fig2,ax2 = plt.subplots()
ax2.set_prop_cycle(cycler('c',colors)+
                   cycler('markerfacecolor',colors))
for b,cAlt in zip(B,colors[::-1]):
    ax2.plot(x,x+b,'-o',markersize=7,markerfacecoloralt=cAlt,fillstyle='top')