private void deleteButton_Click(object sender, EventArgs e)
        {
            MainForm mainForm = new MainForm();

            if (colorComboBox.SelectedItem == null)
            {
                return;
            }
            var chosenColor = Color.FromName(chosenColorEnum.ToString());

            if (MainForm._figures.Exists(x => x.Color.Equals(chosenColor)))
            {
                MainForm._figures.RemoveAll(x => x.Color.Equals(chosenColor));
                MainForm.calculateNewArea();
                MessageBox.Show($"{chosenColorEnum} figures have been removed!");
            }
        }
 public string GetColor(ColorsEnum color)
 //public string GetColor(string color)
 {
     return(color.ToString());
 }