Unity MonoBehaviour UIElements Inspector Implementation

MonoBehaviourDrawer.cs

using UnityEditor;
using UnityEditor.UIElements;
using UnityEngine;
using UnityEngine.UIElements;

[CustomEditor(typeof(MonoBehaviour), true, isFallback = true)]
public class MonoBehaviourDrawer : Editor
{
    public override void OnInspectorGUI()
    {
        base.OnInspectorGUI();
    }

    public override VisualElement CreateInspectorGUI()
    {
        VisualElement root = new VisualElement();

        SerializedProperty foo = serializedObject.GetIterator();
        foo.Next(true); // Hide flags
        foo.NextVisible(false); // script reference

        PropertyField scriptField = new PropertyField(foo);
        scriptField.SetEnabled(false);
        root.Add(scriptField);
        root.name = foo.objectReferenceValue.name + "Inspector";

        while ( foo.NextVisible(false) )
        {
            root.Add(new PropertyField(foo));
        }

        return root;
    }
}