EmptyGraphics.cs

using UnityEngine;
using UnityEngine.UI;
#if UNITY_EDITOR
using UnityEditor;
#endif

public class EmptyGraphics : Graphic
{
    protected override void OnPopulateMesh(VertexHelper vh)
    {
        vh.Clear();
    }
    
    public override void SetMaterialDirty() { }
}
    
#if UNITY_EDITOR
[CustomEditor(typeof(EmptyGraphics))]
public class EmptyGraphicEditor : Editor
{
    private SerializedProperty m_scriptProp = null;
    
    public override void OnEnable()
    {
        m_scriptProp = serializedObject.FindProperty("m_Script");
    }
    
    public override void OnInspectorGUI()
    {
        // Default script field
        GUI.enabled = false;
        serializedObject.Update();
        EditorGUILayout.PropertyField(m_scriptProp);
        serializedObject.ApplyModifiedProperties();
        GUI.enabled = true;
    }
}
#endif