void OnGUI()
 {
     GUILayout.BeginHorizontal(GUI.skin.box);
     GUILayout.FlexibleSpace();
     GUILayout.Label("Notes", EditorStyles.boldLabel);
     GUILayout.FlexibleSpace();
     GUILayout.EndHorizontal();
     NewNoteGUI();
     //GUILayout.Space(20);
     GUILayout.BeginHorizontal();
     GUILayout.BeginVertical(GUI.skin.box, GUILayout.MaxWidth(300));
     ListNotes();
     GUILayout.EndVertical();
     if (currentNote != null)
     {
         GUI.backgroundColor = currentNote.NoteColor();
     }
     GUILayout.BeginVertical(GUI.skin.box);
     NoteContentGUI();
     GUI.backgroundColor = Color.white;
     GUILayout.EndVertical();
     GUILayout.EndHorizontal();
 }