private void btn_ls7Col_Click(object sender, EventArgs e)
{
DialogResult result = dia_ls7.ShowDialog();
if (result == DialogResult.OK)
{
btn_ls7Col.BackColor = dia_ls7.Color;
btn_ls7Col.ForeColor = dia_ls7.Color;
btn_ls7Col.Text = ColorTranslator.ToHtml(dia_ls7.Color);
SaveSettings();
}
}