Whats the best way to debug Physics2D.OverlapArea?

I have an object that is moving around and I need to visually see where my Physics2D.OverlapArea is to debug it.

I'm trying to use the following code but it makes the gizmos change size when the object moves.

Code (csharp):

1.  
2.     void OnDrawGizmosSelected() {
3.         Gizmos.color = Color.blue;
4.         Gizmos.DrawCube(transform.position, new Vector3(bottomSensor[1].x, bottomSensor[1].y, 0));
5.         Gizmos.color = Color.red;
6.         Gizmos.DrawCube(transform.position, new Vector3(bottomSensor[3].x, bottomSensor[3].y, 0));
7.     }
8.  

here's a sample of the code I'm using to create the overlaps, it is creating a sample overlap area under the object on the left and right:

Code (csharp):

1.  
2. void LateUpdate() {
3.      
4.         // Bottom Left.
5.         bottomSensor[0] = new Vector2(
6.             transform.position.x - 1f,
7.             transform.position.y
8.         );
9.         bottomSensor[1] =    new Vector2(
10.             transform.position.x,
11.             transform.position.y - 0.1f
12.         );
13.  
14.         // Bottom Right.
15.         bottomSensor[2] = new Vector2(
16.             transform.position.x,
17.             transform.position.y
18.         );
19.         bottomSensor[3] =    new Vector2(
20.             transform.position.x + 1f,
21.             transform.position.y - 0.1f
22.         );
23.  
24.         groundObjectsLeft = Physics2D.OverlapAreaAll(bottomSensor[0], bottomSensor[1]);
25.         groundObjectsRight = Physics2D.OverlapAreaAll(bottomSensor[2], bottomSensor[3]);
26. }

The problem I am having is that the Gizmo requires a center axis, and a size, whereas Physics2D.OverlapArea requires a topleft and bottom right set of two Vector2's. How do I translate this to Gizmos.DrawCube?

 

My suggestion is to create a mesh based on the overlapping area. Something like this code snippet:

Vector3 a, b; // 2d collider path intersections.
Mesh overlapAreaMesh = new Mesh();
overlapAreaMesh.vertices = new Vector3[] {a, new Vector3(a.x, b.y, 0), new Vector3(b.x, a.y, 0), b};
overlapAreaMesh.triangles = new int[] {0, 1, 2, 3, 2, 1};

Then attaching that new mesh to a renderer with a sweet material.