private void ButtonColor_Click(object sender, EventArgs e)
{
IColorSelector selector = new ColorSelector();
selector.Color = ((ColorButton)sender).ButtonColor;
selector.Location = base.PointToScreen(new Point(((ColorButton)sender).Left, ((ColorButton)sender).Bottom));
if (selector.DoModal())
{
((ColorButton)sender).ButtonColor = selector.Color;
}
}