diff --git a/src/metroEmuUI/MetroEmuRun.py b/src/metroEmuUI/MetroEmuRun.py
index 6730932..7998216 100644
--- a/src/metroEmuUI/MetroEmuRun.py
+++ b/src/metroEmuUI/MetroEmuRun.py
@@ -24,7 +24,7 @@
 import railwayPanelMap as pnlMap
 import dataMgr as dm
 
-FRAME_SIZE = (1800, 1000)
+FRAME_SIZE = (1800, 1030)
 
 #-----------------------------------------------------------------------------
 #-----------------------------------------------------------------------------
@@ -46,9 +46,11 @@ def __init__(self, parent, id, title):
 
         # Build UI sizer
         self.SetSizer(self._buidUISizer())
+
+        self.statusbar = self.CreateStatusBar(1)
+        self.statusbar.SetStatusText('Test mode: %s' %str(gv.gTestMD))
         # Set the periodic call back
         self.updateLock = False
-
         # Define the data manager parallel thread.
         gv.iDataMgr = dm.DataManager(self)
         gv.iDataMgr.start()
@@ -57,7 +59,6 @@ def __init__(self, parent, id, title):
         self.timer = wx.Timer(self)
         self.Bind(wx.EVT_TIMER, self.periodic)
         self.timer.Start(gv.PERIODIC)
-
         self.Bind(wx.EVT_CLOSE, self.onClose)
         gv.gDebugPrint("Metro-System real world main frame inited.", logType=gv.LOG_INFO)
 
@@ -197,7 +198,7 @@ def onLoadScenario(self, event):
 #-----------------------------------------------------------------------------
     def onHelp(self, event):
         """ Pop-up the Help information window. """
-        wx.MessageBox(' If there is any bug, please contect: \n\n \
+        wx.MessageBox(' If there is any bug, please contact: \n\n \
                         Author:      Yuancheng Liu \n \
                         Email:       liu_yuan_cheng@hotmail.com \n \
                         Created:     2023/05/02 \n \
diff --git a/src/metroEmuUI/railwayPanelMap.py b/src/metroEmuUI/railwayPanelMap.py
index 7416b0c..1598542 100644
--- a/src/metroEmuUI/railwayPanelMap.py
+++ b/src/metroEmuUI/railwayPanelMap.py
@@ -2,21 +2,20 @@
 #-----------------------------------------------------------------------------
 # Name:        railWayPanelMap.py
 #
-# Purpose:     This module is used to display the top view of the main railway 
-#              system current state.
+# Purpose:     This module is used to display the state animation of the railway 
+#              system, such as trains movement, sensors detection state, station
+#              docking state and singal changes ...
 # 
 # Author:      Yuancheng Liu
 #
-# Version:     v0.1
+# Version:     v0.1.2
 # Created:     2023/06/01
-# Copyright:   
-# License:     
+# Copyright:   Copyright (c) 2023 LiuYuancheng
+# License:     MIT License
 #-----------------------------------------------------------------------------
 
 import os
 import wx
-import math
-
 import metroEmuGobal as gv
 
 DEF_PNL_SIZE = (1600, 900)
@@ -24,7 +23,7 @@
 #-----------------------------------------------------------------------------
 #-----------------------------------------------------------------------------
 class PanelMap(wx.Panel):
-    """ RailWay top view map"""
+    """ RailWay system map panel."""
     def __init__(self, parent, panelSize=DEF_PNL_SIZE):
         wx.Panel.__init__(self, parent, size=panelSize)
         self.bgColor = wx.Colour(30, 40, 62)
@@ -35,18 +34,22 @@ def __init__(self, parent, panelSize=DEF_PNL_SIZE):
         # Paint the map
         self.Bind(wx.EVT_PAINT, self.onPaint)
         # self.Bind(wx.EVT_LEFT_DOWN, self.onLeftClick)
-        self.SetDoubleBuffered(True)  # Set the panel double buffer to void the panel flash during update.
+        # Set the panel double buffer to void the panel flash during update.
+        self.SetDoubleBuffered(True)
 
 #-----------------------------------------------------------------------------
     def _loadBitMaps(self):
-        """ load the internal usage bitmaps."""
+        """ Load the internal usage pictures as bitmaps."""
         imgDict = {}
-        img = os.path.join(gv.IMG_FD, 'Alert.png')
-        png = wx.Image(img, wx.BITMAP_TYPE_ANY).ConvertToBitmap()
-        imgDict['alert'] = png
+        imgPath = os.path.join(gv.IMG_FD, 'Alert.png')
+        if os.path.exists(imgPath):
+            png = wx.Image(imgPath, wx.BITMAP_TYPE_ANY).ConvertToBitmap()
+            imgDict['alert'] = png
         return imgDict
 
 #-----------------------------------------------------------------------------
+# Define all the _draw() map components paint functions.
+    
     def _drawEnvItems(self, dc):
         """ Draw the environment items."""
         dc.SetPen(self.dcDefPen)
diff --git a/src/scadaEmuUI/hmiEmuRun.py b/src/scadaEmuUI/hmiEmuRun.py
index 16870d7..528c3c3 100644
--- a/src/scadaEmuUI/hmiEmuRun.py
+++ b/src/scadaEmuUI/hmiEmuRun.py
@@ -25,7 +25,7 @@
 import scadaDataMgr as dataMgr
 
 PERIODIC = 500      # update in every 500ms
-FRAME_SIZE = (1800, 1020)
+FRAME_SIZE = (1800, 1030)
 
 #-----------------------------------------------------------------------------
 #-----------------------------------------------------------------------------
@@ -42,6 +42,10 @@ def __init__(self, parent, id, title):
         self._buildMenuBar()
         # Build UI sizer
         self.SetSizer(self._buidUISizer())
+
+        self.statusbar = self.CreateStatusBar(1)
+        self.statusbar.SetStatusText('Test mode: %s' %str(gv.TEST_MD))
+
         self.updateLock = False
         if not gv.TEST_MD:
             gv.idataMgr = dataMgr.DataManager(self, gv.gPlcInfo)
@@ -214,7 +218,7 @@ def periodic(self, event):
 #-----------------------------------------------------------------------------
     def onHelp(self, event):
         """ Pop-up the Help information window. """
-        wx.MessageBox(' If there is any bug, please contect: \n\n \
+        wx.MessageBox(' If there is any bug, please contact: \n\n \
                         Author:      Yuancheng Liu \n \
                         Email:       liu_yuan_cheng@hotmail.com \n \
                         Created:     2023/05/02 \n \
diff --git a/src/trainCtrlUI/trainCtrlRun.py b/src/trainCtrlUI/trainCtrlRun.py
index e45b2e5..57b3db1 100644
--- a/src/trainCtrlUI/trainCtrlRun.py
+++ b/src/trainCtrlUI/trainCtrlRun.py
@@ -42,7 +42,6 @@ def __init__(self, parent, id, title):
         if not gv.TEST_MD:
             gv.idataMgr = dataMgr.DataManager(self, gv.gPlcInfo)
 
-
         self.statusbar = self.CreateStatusBar(1)
         self.statusbar.SetStatusText('Test mode: %s' %str(gv.TEST_MD))
         # Set the periodic call back
@@ -51,7 +50,6 @@ def __init__(self, parent, id, title):
         self.updateLock = False
         self.Bind(wx.EVT_TIMER, self.periodic)
         self.timer.Start(PERIODIC)  # every 500 ms
-
         
         self.trainPwrState = [True]*10
         TrainTgtPlcID = 'PLC-06'
@@ -59,8 +57,6 @@ def __init__(self, parent, id, title):
         for idx in range(csIdx, ceIdx):
             gv.idataMgr.setPlcCoilsData(TrainTgtPlcID, idx, self.trainPwrState[idx])
 
-            
-
 #--UIFrame---------------------------------------------------------------------
     def _initGlobals(self):
         # Init the global parameters used only by this module