Make sense of the RecTransform in edit mode! (without changing the inspector to debug mode)

RectTransformExplained.cs

using UnityEngine;

[ExecuteInEditMode]
public class RectTransformExplained : MonoBehaviour
{
    RectTransform rt;

    [Header("Anchored position")]
    [SerializeField] Vector2 anchorePosition;

    [Header("Anchor max/min")]
    [SerializeField] Vector2 anchorMax;
    [SerializeField] Vector2 anchorMin;

    [Header("Offset max/min")]
    [SerializeField] Vector2 offsetMax;
    [SerializeField] Vector2 offsetMin;

    [Header("Size delta")]
    [SerializeField] Vector2 sizeDelta;

    [Header("Rect")]
    [SerializeField] Vector2 rect_position;
    [SerializeField] Vector2 rect_center;
    [SerializeField] Vector2 rect_size;
    [SerializeField] Vector2 rect_max;
    [SerializeField] Vector2 rect_min;

    [Header("Relative Bounds")]
    [SerializeField] Transform relativeTransformUsedForBounds;
    [SerializeField] Bounds bounds;


    void Start ()
    {
      	rt = GetComponent<RectTransform>();
    }

    void Update ()
    {
        anchorePosition = rt.anchoredPosition;

        offsetMax = rt.offsetMax;
        offsetMin = rt.offsetMin;

        anchorMax = rt.anchorMax;
        anchorMin = rt.anchorMin;

        sizeDelta = rt.sizeDelta;
	
        rect_position = rt.rect.position;
        rect_center = rt.rect.center;
        rect_max = rt.rect.max;
        rect_min = rt.rect.max;

        Transform relativeUsedforBounds = relativeTransformUsedForBounds != null ? relativeTransformUsedForBounds : transform.parent;
        bounds = RectTransformUtility.CalculateRelativeRectTransformBounds(relativeUsedforBounds, transform);
    }
}