如何更改系列标题的颜色？

Question

我通过Windows窗体应用程序创建图表，我的代码可以工作，但我想改变图片中这些的颜色，我不知道他们的名字，代码： output picture

我想将颜色而不是蓝色更改为GreenYellow，而不是将橙色更改为Bisque。

代码完全正常，但这两个颜色与列的颜色不同！ 我的代码是：

MySqlConnection cn = new MySqlConnection("Database=growing_together;Data Source=localhost;User Id=root;password=;CHARSET=utf8;");
    DataTable dt2 = new DataTable();
    cn.Open();
    MySqlDataReader dR;

    MySqlCommand QryDerniereAnnee, QryAnneeCourante;
    int derniereAnnee = DateTime.Today.Year - 1;            
    QryDerniereAnnee = new MySqlCommand("SELECT Extract(month from date_facture) as numMois,MONTHNAME(date_facture) as mois, SUM(montant) as sommeM from facture where Extract(year from date_facture)=" + derniereAnnee.ToString() + " GROUP BY mois order by numMois", cn);
    QryAnneeCourante = new MySqlCommand("SELECT Extract(month from date_facture) as numMois,MONTHNAME(date_facture) as mois, SUM(montant) as sommeM from facture where Extract(year from date_facture)=" + DateTime.Today.Year + " GROUP BY mois order by numMois", cn);
    try
    {
        Series last = new Series("Last Year "+derniereAnnee);
        dR = QryDerniereAnnee.ExecuteReader();
        int i1=0;
        while (dR.Read())
        {
            last.Points.AddXY(dR.GetString("mois"), dR.GetInt32("sommeM"));
            last.Points[i1].Color = Color.GreenYellow;
            i1++;
        }
        dR.Close();
        chart2.Series.Add(last);

        Series current = new Series("Current Year " + DateTime.Today.Year);
        dR = QryAnneeCourante.ExecuteReader();
        int i2 = 0;
        while (dR.Read())
        {
            current.Points.AddXY(dR.GetString("mois"), dR.GetInt32("sommeM"));
            current.Points[i2].Color = Color.Bisque;
            i2++;
        }
        dR.Close();
        chart2.Series.Add(current);

        chart2.AlignDataPointsByAxisLabel();
    }
    catch(Exception e1)
    {
        MessageBox.Show("Chart cannot be displayed", "Error", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
    }