Python Excel 单元格背景色 openpyxl fgcolor bgcolor
https://openpyxl.readthedocs.io/en/stable/styles.html
from openpyxl.styles import PatternFill
# sheet['A1'].fill = PatternFill(start_color="FFC7CE", end_color="FFC7CE", fill_type = "solid")
# sheet['A1'].fill = PatternFill("solid", fgColor="DDDDDD") # Better solution