public ColorLine(Pixel begin, Pixel end, Color color) : base(begin, end) { pen = new Pen(color); }
public ColorCircle(Pixel a, int r, Color color) : base(a, r) { pen = new Pen(color); }
public ColorCircle(Pixel center, Pixel point, Color color) : this(center, center.Distanse(point), color) { }
public Circle(Pixel center, Pixel point) : this(center, center.Distanse(point)) { }