diff --git a/src/serverlogging.cpp b/src/serverlogging.cpp
index c2ae0547..4b8d08e4 100755
--- a/src/serverlogging.cpp
+++ b/src/serverlogging.cpp
@@ -26,6 +26,27 @@
 
 
 /* Implementation *************************************************************/
+CHistoryGraph::CHistoryGraph() :
+    iYAxisStart ( 0 ),
+    iYAxisEnd ( 24 ),
+    iNumTicksX ( 9 ),
+    iNumTicksY ( 5 ),
+    iPlotWidth ( 500 ),
+    iPlotHeight ( 500 ),
+    iGridFrameOffset ( 10 ),
+    iTextOffsetToGrid ( 3 ),
+    iYAxisTextHeight ( 20 ),
+    AxisFont ( "Arial", 10 ),
+    PlotBackgroundColor ( Qt::white ), // white background
+    PlotFrameColor ( Qt::black ), // black frame
+    PlotGridColor ( Qt::gray ), // gray grid
+    PlotTextColor ( Qt::black ), // black text
+    PlotMarkerNewColor ( Qt::blue ), // blue marker for new connection
+    PlotMarkerStopColor ( Qt::red ) // red marker server stop
+{
+}
+
+
 CServerLogging::CServerLogging() :
     bDoLogging ( false ), File ( DEFAULT_LOG_FILE_NAME )
 {
diff --git a/src/serverlogging.h b/src/serverlogging.h
index 940b35ea..9bc6b4ec 100755
--- a/src/serverlogging.h
+++ b/src/serverlogging.h
@@ -35,6 +35,31 @@
 
 
 /* Classes ********************************************************************/
+class CHistoryGraph
+{
+public:
+    CHistoryGraph();
+
+protected:
+    int    iYAxisStart;
+    int    iYAxisEnd;
+    int    iNumTicksX;
+    int    iNumTicksY;
+    int    iPlotWidth;
+    int    iPlotHeight;
+    int    iGridFrameOffset;
+    int    iTextOffsetToGrid;
+    int    iYAxisTextHeight;
+    QFont  AxisFont;
+    QColor PlotBackgroundColor;
+    QColor PlotFrameColor;
+    QColor PlotGridColor;
+    QColor PlotTextColor;
+    QColor PlotMarkerNewColor;
+    QColor PlotMarkerStopColor;
+};
+
+
 class CServerLogging
 {
 public: