如何告诉python pandas条形图从x标签值中选择颜色？

import pandas as pd
import matplotlib.pyplot as plt

# 创建一个DataFrame
data = {'Category': ['A', 'B', 'C', 'D'],
        'Value': [10, 20, 15, 25],
        'Color': ['red', 'green', 'blue', 'yellow']}
df = pd.DataFrame(data)

# 创建一个颜色映射字典
color_map = dict(zip(df['Category'], df['Color']))

# 绘制条形图
plt.bar(df['Category'], df['Value'], color=df['Category'].map(color_map))

# 显示图形
plt.show()