indicator stylesheet doesn't work

from PySide6.QtWidgets import *
from PySide6.QtCore import *
from PySide6.QtGui import *
import sys


app = QApplication(sys.argv)


main = QListWidget()

for i in range(10):
    item = QListWidgetItem("test")
    item.setCheckState(Qt.Checked)
    main.addItem(item)

main.setStyleSheet(
    """
	QListWidget::indicator {
	background-color:blue;

	}

	"""
)

main.show()

app.exec_()