Components -> Haw to change DataGrid background?

1

Hi

I want to change background in first column DataGrid : Make it gray . I tried to assign MyCellRenderer class but what to put in a class to make background change?
I did

override protected function drawLayout():void {
setStyle(“backgroundColor”,0x555555);
textField.backgroundColor=0x555555;
}

doesn’t work

Or any other way available?

Thanks