如何根据字典值为pandas数据框的各个单元格着色

import pandas as pd

data = {'A': [1, 2, 3, 4, 5],
        'B': [6, 7, 8, 9, 10],
        'C': [11, 12, 13, 14, 15]}
df = pd.DataFrame(data)

color_dict = {1: 'background-color: red',
              2: 'background-color: blue',
              3: 'background-color: green',
              4: 'background-color: yellow',
              5: 'background-color: orange'}

styled_df = df.style.applymap(lambda x: color_dict.get(x, ''), subset=pd.IndexSlice[:, :])

styled_df.render().to_file('styled_table.html')