how to set the forgound color of listitems in c#

    private void AddItem(Foo f)
    {
        ListViewItem lvi = new ListViewItem();
        StackPanel sp = new StackPanel();
        TextBlock tb_id = new TextBlock();
        tb_id.Text = f.Id;
        // Set your other proerty here
        sp.Children.Add(tb_id);

        TextBlock tb_fullInfo = new TextBlock();
        tb_fullInfo.Text = f.FullInfo;
        // Set your other property here
        sp.Children.Add(tb_fullInfo);

        lvi.Content = sp;
        listViewTest.Items.Add(lvi);
    }