AgGrid give me error 'ALPINE': <AgGridTheme.ALPINE: 'alpine'>,

Using Streamlit
,
1

I am new to Streamlit and attempted to execute the code provided below; however, I encountered an error. Please review both my code and the error message below, and kindly identify the issue while offering the appropriate solution. Thank you in advance for your assistance.
give error at last line
this is my code

import pandas as pd
import streamlit as st
from st_aggrid import JsCode, AgGrid, GridOptionsBuilder
from st_aggrid.shared import GridUpdateMode

df=pd.DataFrame({ “Name”: [‘Erica’, ‘Rogers’, ‘Malcolm’, ‘Barrett’], “Age”: [43, 35, 57, 29]})

add_row_func = “”"function(e)
{ let api = e.api;
let rowIndex = e.rowIndex + 1;

                  let vnme = e.data.Name;
                  let vage = e.data.Age;

                  api.applyTransaction({addIndex: rowIndex, add: [{'Name': vnme, 'Age': vage}]}); 

                  };"""

ShowAddBtn = JsCode(“function addBtn(params) { return ‘+’; }”)

gridOptions = GridOptionsBuilder.from_dataframe(df)
gridOptions.configure_column(‘+’, headerTooltip=‘Add new row’, editable=False, filter=False,
onCellClicked=JsCode(add_row_func), cellRenderer=ShowAddBtn,
autoHeight=True, wrapText=False, lockPosition=‘left’, pinned=‘left’,
sorteable=False, suppressMenu=True, maxWidth = 50)
gridOptions.configure_default_column(editable=True)
gb = gridOptions.build()

dta = AgGrid(df, gridOptions=gb, height=350, allow_unsafe_jscode=True, theme=“blue”, update_mode=GridUpdateMode.SELECTION_CHANGED)

=============

see the error

ValueError: blue is not valid. Available options: {‘STREAMLIT’: <AgGridTheme.STREAMLIT: ‘streamlit’>, ‘ALPINE’: <AgGridTheme.ALPINE: ‘alpine’>, ‘BALHAM’: <AgGridTheme.BALHAM: ‘balham’>, ‘MATERIAL’: <AgGridTheme.MATERIAL: ‘material’>}