private void btn_ls3Col_Click(object sender, EventArgs e)
{
DialogResult result = dia_ls3.ShowDialog();
if (result == DialogResult.OK)
{
btn_ls3Col.BackColor = dia_ls3.Color;
btn_ls3Col.ForeColor = dia_ls3.Color;
btn_ls3Col.Text = ColorTranslator.ToHtml(dia_ls3.Color);
SaveSettings();
}
}