How To Create New Chart: Fill The Area Between Two Lines Using xlwings?

【Example】

【Code】

import xlwings as xw
import os

def set_style(cht):
    cht.ChartArea.Format.Line.Visible=False
    cht.PlotArea.Format.Fill.Visible = False
    cht.PlotArea.Format.Line.Visible = True
    cht.PlotArea.Format.Line.ForeColor.RGB=xw.utils.rgb_to_int((200,200,200))
    #cht.PlotArea.Format.Line.ForeColor.ObjectThemeColor = msoThemeColorText1
    ax1 = cht.Axes(1)
    ax2 = cht.Axes(2)
    ax1.HasTitle = True
    ax1.AxisTitle.Text = 'Categories'
    ax1.AxisTitle.Font.Size = 10
    ax1.TickLabels.Font.Size = 8
    #ax1.TickLabels.NumberFormat = '0.00'
    ax1.HasMajorGridlines = False
    ax2.HasTitle = True
    ax2.AxisTitle.Text = 'Values'
    ax2.AxisTitle.Font.Size = 10
    ax2.TickLabels.Font.Size = 8
    ax2.HasMajorGridlines = False
    cht.HasTitle = True
    #cht.ChartTitle.Caption = 'Plot'
    #cht.ChartTitle.Font.Size = 12


root=os.getcwd()
app=xw.App(visible=True,add_book=False)
wb=app.books.open(root+r'/data.xlsx',read_only=False)
sht=wb.sheets('Sheet1')
data=sht.range('A1:C100').value
app.kill()

from comtypes.client import CreateObject
app2=CreateObject("Excel.Application")
app2.Visible=True
app2.ScreenUpdating=False
wb2=app2.Workbooks.Open(root+r'/data.xlsx')
sht2=wb2.Sheets('Sheet1')

shp=sht2.Shapes.AddChart2()
shp.Left=20
cht=shp.Chart
cht.ChartType=-4169
ax1=cht.Axes(1)
ax2=cht.Axes(2)
ax1.MinimumScale=0
ax1.MaximumScale=101
ax2.MinimumScale=0
ax2.MaximumScale=120

set_style(cht)

cht.SeriesCollection().NewSeries()

pt=[[0 for _ in range(2)] for _ in range(201)]
for i in range(100):
    pt[i][0]=shape_x(cht,100-i)
    pt[i][1]=shape_y(cht,data[100-i-1][1])
for i in range(100,200):
    pt[i][0]=shape_x(cht,i-100)
    pt[i][1]=shape_y(cht,data[i-100][2])
pt[200][0]=pt[0][0]
pt[200][1]=pt[0][1]

shp=cht.Shapes.AddPolyline(pt)
shp.Fill.ForeColor.RGB=xw.utils.rgb_to_int((76,200,132))
shp.Line.Visible=False
shp.Fill.Transparency=0.3

app2.ScreenUpdating=True

#wb2.Save()
#os.system('taskkill /f /im EXCEL.EXE')