单击图例时，如何更改matplot中一组点的颜色？

import matplotlib.pyplot as plt
import numpy as np

x = np.random.rand(100)
y = np.random.rand(100)
colors = np.random.rand(100)

scatter = plt.scatter(x, y, c=colors)

legend = plt.legend(*scatter.legend_elements(), title="Colors")

def on_legend_click(event):
    index = event.ind[0]  # 获取点击的图例索引
    new_color = np.random.rand(3)  # 生成新的随机颜色
    scatter.set_facecolor(new_color)  # 设置散点的颜色
    legend.legendHandles[index].set_color(new_color)  # 设置图例的颜色
    plt.draw()  # 重新绘制图形

legend.get_frame().set_picker(True)  # 允许图例接收点击事件
plt.gcf().canvas.mpl_connect('pick_event', on_legend_click)  # 绑定点击事件处理函数

import matplotlib.pyplot as plt
import numpy as np

x = np.random.rand(100)
y = np.random.rand(100)
colors = np.random.rand(100)

scatter = plt.scatter(x, y, c=colors)
legend = plt.legend(*scatter.legend_elements(), title="Colors")

def on_legend_click(event):
    index = event.ind[0]
    new_color = np.random.rand(3)
    scatter.set_facecolor(new_color)
    legend.legendHandles[index].set_color(new_color)
    plt.draw()

legend.get_frame().set_picker(True)
plt.gcf().canvas.mpl_connect('pick_event', on_legend_click)

plt.show()