edColorPickerDropDown - another question

If I set a cell color, say advstringgrid1.Colors[ACol, ARow] := clYellow, how do I programmatically set edColorPickerDropDown in that cell to pick up the same color?

There should be nothing to do.
I retested this here:

procedure TForm5.FormCreate(Sender: TObject);
  advstringgrid1.Colors[1,1] := clYellow;
  advstringgrid1.DefaultEditor := edColorPickerDropDown;

and the color picker opens with the clYellow color.