UnityEditor.RectHandles.DrawPolyLineWithShadow C# (CSharp) Method

        public static void DrawPolyLineWithShadow(Color shadowColor, Vector2 screenOffset, params Vector3[] points)
        {
            Camera current = Camera.current;
            if ((current != null) && (Event.current.type == EventType.Repaint))
            {
                if (s_TempVectors.Length != points.Length)
                {
                    s_TempVectors = new Vector3[points.Length];
                }
                for (int i = 0; i < points.Length; i++)
                {
                    s_TempVectors[i] = current.ScreenToWorldPoint(current.WorldToScreenPoint(points[i]) + screenOffset);
                }
                Color color = Handles.color;
                shadowColor.a *= color.a;
                Handles.color = shadowColor;
                Handles.DrawPolyLine(s_TempVectors);
                Handles.color = color;
                Handles.DrawPolyLine(points);
            }
        }

        public static void RenderRectWithShadow(bool active, params Vector3[] corners)
        {
            Vector3[] vector3Array = new Vector3[5] {
                corners[0], corners[1], corners[2], corners[3], corners[0]
            };
            Color color = Handles.color;

            Handles.color = new Color(1f, 1f, 1f, !active ? 0.5f : 1f);
            RectHandles.DrawPolyLineWithShadow(new Color(0.0f, 0.0f, 0.0f, !active ? 0.5f : 1f), new Vector2(1f, -1f), vector3Array);
            Handles.color = color;
        }