/// <summary>
        /// Draws a Drag and Drop Area and allows you to send in a method which receives an array of the objects that were dragged into the area.
        /// <para></para>
        /// The caller method needs to receive a generic type "T" and then cast it to its desired type itself OR use a Lambda Expression for handling the OnDragged-event.
        /// <para></para>
        /// Example implementation in OnGUI: '<see cref="Paalo.UnityMiscTools.Examples.DragAndDropAreaExample"/>'
        /// </summary>
        /// <seealso cref="HowToDrawDragAndDropArea"/>
        /// <typeparam name="T">The object type you want the '<paramref name="OnPerformedDragCallback"/>'-method to handle.</typeparam>
        /// <param name="dragAreaInfo">How the DragArea should look like and what text it should display.</param>
        /// <returns></returns>
        public static void DrawDragAndDropArea <T>(DragAndDropAreaInfo dragAreaInfo, System.Action <T[]> OnPerformedDragCallback = null) where T : UnityEngine.Object
        {
            //Change color and create Drag Area
            Color originalGUIColor = GUI.color;

            GUI.color = dragAreaInfo.outlineColor;
            EditorGUILayout.BeginVertical(GUI.skin.box);
            GUI.color = dragAreaInfo.backgroundColor;
            var dragArea = GUILayoutUtility.GetRect(dragAreaInfo.dragAreaWidth, dragAreaInfo.dragAreaHeight, GUILayout.ExpandWidth(true));

            GUI.Box(dragArea, dragAreaInfo.DragAreaText);

            //See if the current Editor Event is a DragAndDrop event.
            var anEvent = Event.current;

            switch (anEvent.type)
            {
            case EventType.DragUpdated:
            case EventType.DragPerform:
                if (!dragArea.Contains(anEvent.mousePosition))
                {
                    //Early Out in case the drop is made outside the drag area.
                    break;
                }

                //Change mouse cursor icon to the "Copy" icon
                DragAndDrop.visualMode = DragAndDropVisualMode.Copy;

                //If mouse is released
                if (anEvent.type == EventType.DragPerform)
                {
                    DragAndDrop.AcceptDrag();
                    var draggedTypeObjectsArray = GetDraggedObjects <T>();
                    OnPerformedDragCallback?.Invoke(draggedTypeObjectsArray);
                }

                Event.current.Use();
                break;
            }

            EditorGUILayout.EndVertical();
            GUI.color = originalGUIColor;
        }
        private void GUISection_GetAudioClips()
        {
            Color oldGuiColor = GUI.color;

            EditorGUILayout.BeginVertical(GUI.skin.box);

            EditorGUILayout.Space();
            var dragAndDropInfo = new DragAndDropAreaInfo("Audio Clips", Color.black, Color.cyan);

            PaaloEditorHelper.DrawDragAndDropArea <AudioClip>(dragAndDropInfo, UpdateAudioClipsOnDragAndDrop);
            EditorGUILayout.Space();

            GUI.color = Color.red;
            if (GUILayout.Button("Clear selected AudioClips"))
            {
                //audioClips = null;
                audioClips = new AudioClip[0];
            }
            EditorGUILayout.Space();

            GUI.color = oldGuiColor;
            EditorGUILayout.EndVertical();
        }