有没有办法在py pptx中改变表格中所有单元格的颜色？

from pptx import Presentation
from pptx.util import RGBColor

ppt = Presentation('your_ppt_file.pptx')

for slide in ppt.slides:
    # 遍历幻灯片中的所有表格
    for shape in slide.shapes:
        if shape.has_table:
            table = shape.table
            # 遍历表格中的所有单元格
            for row in table.rows:
                for cell in row.cells:
                    # 修改单元格的填充颜色
                    cell.fill.solid()
                    cell.fill.fore_color.rgb = RGBColor(255, 0, 0)  # 设置为红色

ppt.save('modified_ppt_file.pptx')