private void OnEnable()
    {
        window           = this;
        serializedObject = new SerializedObject(this);

        if (EditorPrefs.HasKey(StatePrefsKey))
        {
            JsonUtility.FromJsonOverwrite(EditorPrefs.GetString(StatePrefsKey), this);
        }
    }
 private static void ShowWindow()
 {
     window = GetWindow <ColliderVisualizerWindow>();
     window.titleContent = new GUIContent("Collider Visualizer");
     window.Show();
 }