change color ticks matplotlib code example

Example 1: change plot line color in matplotlib

plot(x, y, color='green', linestyle='dashed', marker='o',
     markerfacecolor='blue', markersize=12).

Example 2: add colorbar matplotlib

import matplotlib.pyplot as plt

plt.figure()
m = create_map()
plt.scatter(*positions[::-1],c=count_vec)
plt.colorbar()
plt.show()