UnityEditor.TagManagerInspector.AddToSortLayerList C# (CSharp) Method

        private void AddToSortLayerList(ReorderableList list)
        {
            base.serializedObject.ApplyModifiedProperties();
            InternalEditorUtility.AddSortingLayer();
            base.serializedObject.Update();
            list.index = list.serializedProperty.arraySize - 1;
        }