using UnityEditor;
using UnityEngine;

[CustomEditor(typeof(ImageEx), true), CanEditMultipleObjects]
public class ImageExEditor : UnityEditor.UI.ImageEditor
{

    SerializedProperty m_Gray;
    SerializedProperty m_IconKey;

    protected override void OnEnable()
    {
        base.OnEnable();
        m_Gray = this.serializedObject.FindProperty("m_Gray");
        m_IconKey = this.serializedObject.FindProperty("m_IconKey");
    }

    public override void OnInspectorGUI()
    {
        base.OnInspectorGUI();
        EditorGUILayout.Space();

        EditorGUILayout.PropertyField(m_Gray, new GUIContent("Gray"));
        EditorGUILayout.PropertyField(m_IconKey, new GUIContent("IconKey"));

        base.serializedObject.ApplyModifiedProperties();
        Repaint();
    }

}