public static ColorManager LightScheme()
{
var colors = new ColorManager();
colors.Background = Color.White;
colors.Point = new SolidBrush(Color.FromArgb(60, 80, 120));
colors.SteinerPoint = new SolidBrush(Color.DarkGreen);
colors.Triangle = new SolidBrush(Color.FromArgb(230, 240, 250));
colors.Line = new Pen(Color.FromArgb(150, 150, 150));
colors.Segment = new Pen(Color.SteelBlue);
colors.VoronoiLine = new Pen(Color.FromArgb(160, 170, 180));
return colors;
}