---

private void rbColor_CheckedChanged(object sender, EventArgs e)
{
    RadioButton rb = sender as RadioButton;
    if (rb == null || !rb.Checked) return;

    Dictionary<string, Color> colors = new Dictionary<string, Color>
    {
        {"Красный", Color.Red}, {"Синий", Color.Blue}, {"Зелёный", Color.Green},
        {"Жёлтый", Color.Yellow}, {"Оранжевый", Color.Orange},
        {"Фиолетовый", Color.Purple}, {"Розовый", Color.Pink},
        {"Чёрный", Color.Black}, {"Серый", Color.Gray}, {"Коричневый", Color.Brown}
    };

    if (colors.ContainsKey(rb.Text))
        labelText.ForeColor = colors[rb.Text];
}