private void Themebox_SelectedIndexChanged_1(object sender, EventArgs e)
{
if (Themebox.SelectedIndex == 0)
{
subject.Changed(Observerlbl.Text = "Red");
this.BackColor = Color.Red;
}
else if (Themebox.SelectedIndex == 1)
{
subject.Changed(Observerlbl.Text = "Blue");
this.BackColor = Color.Blue;
}
}
