diff --git a/mainwindow.cpp b/mainwindow.cpp
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -32,6 +32,7 @@
 #include <iostream>
 
 #include <snapshotview.h>
+#include <plot.h>
 
 #include "utils.h"
 #include "version.h"
@@ -157,7 +158,7 @@ MainWindow::MainWindow(QWidget *parent) 
         channelBuffers.append(new FrameBuffer(numOfSamples));
         curves.append(new QwtPlotCurve());
         curves[i]->setSamples(channelBuffers[i]);
-        curves[i]->setPen(makeColor(i));
+        curves[i]->setPen(Plot::makeColor(i));
         curves[i]->attach(ui->plot);
     }
 
@@ -471,7 +472,7 @@ void MainWindow::onNumOfChannelsChanged(
             channelBuffers.append(new FrameBuffer(numOfSamples));
             curves.append(new QwtPlotCurve());
             curves.last()->setSamples(channelBuffers.last());
-            curves.last()->setPen(makeColor(curves.length()-1));
+            curves.last()->setPen(Plot::makeColor(curves.length()-1));
             curves.last()->attach(ui->plot);
         }
     }
@@ -653,37 +654,6 @@ void MainWindow::enableDemo(bool enabled
     }
 }
 
-/*
-  Below crude drawing demostrates how color selection occurs for
-  given channel index
-
-  0°                     <--Hue Value-->                           360°
-  |* . o . + . o . * . o . + . o . * . o . + . o . * . o . + . o . |
-
-  * -> 0-3
-  + -> 4-7
-  o -> 8-15
-  . -> 16-31
-
- */
-
-QColor MainWindow::makeColor(unsigned int channelIndex)
-{
-    auto i = channelIndex;
-
-    if (i < 4)
-    {
-        return QColor::fromHsv(360*i/4, 255, 230);
-    }
-    else
-    {
-        double p = floor(log2(i));
-        double n = pow(2, p);
-        i = i - n;
-        return QColor::fromHsv(360*i/n + 360/pow(2,p+1), 255, 230);
-    }
-}
-
 void MainWindow::onExportCsv()
 {
     bool wasPaused = ui->actionPause->isChecked();
diff --git a/mainwindow.h b/mainwindow.h
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -109,8 +109,6 @@ private:
     bool isDemoRunning();
     QwtPlotTextLabel demoIndicator;
 
-    QColor makeColor(unsigned int channelIndex);
-
 private slots:
     void onPortToggled(bool open);
     void onDataReady();      // used with binary number formats
diff --git a/plot.cpp b/plot.cpp
--- a/plot.cpp
+++ b/plot.cpp
@@ -110,3 +110,33 @@ void Plot::darkBackground(bool enabled)
     }
     replot();
 }
+
+/*
+  Below crude drawing demostrates how color selection occurs for
+  given channel index
+
+  0°                     <--Hue Value-->                           360°
+  |* . o . + . o . * . o . + . o . * . o . + . o . * . o . + . o . |
+
+  * -> 0-3
+  + -> 4-7
+  o -> 8-15
+  . -> 16-31
+
+ */
+QColor Plot::makeColor(unsigned int channelIndex)
+{
+    auto i = channelIndex;
+
+    if (i < 4)
+    {
+        return QColor::fromHsv(360*i/4, 255, 230);
+    }
+    else
+    {
+        double p = floor(log2(i));
+        double n = pow(2, p);
+        i = i - n;
+        return QColor::fromHsv(360*i/n + 360/pow(2,p+1), 255, 230);
+    }
+}
diff --git a/plot.h b/plot.h
--- a/plot.h
+++ b/plot.h
@@ -20,6 +20,7 @@
 #ifndef PLOT_H
 #define PLOT_H
 
+#include <QColor>
 #include <qwt_plot.h>
 #include <qwt_plot_grid.h>
 #include <qwt_plot_shapeitem.h>
@@ -34,6 +35,8 @@ public:
     Plot(QWidget* parent = 0);
     void setAxis(bool autoScaled, double yMin = 0, double yMax = 1);
 
+    static QColor makeColor(unsigned int channelIndex);
+
 private:
     bool isAutoScaled;
     double yMin, yMax;
diff --git a/snapshotview.cpp b/snapshotview.cpp
--- a/snapshotview.cpp
+++ b/snapshotview.cpp
@@ -14,6 +14,7 @@ SnapShotView::SnapShotView(QWidget *pare
         QwtPlotCurve* curve = new QwtPlotCurve();
         curves.append(curve);
         curve->setSamples(snapShot->data[ci]);
+        curve->setPen(Plot::makeColor(ci));
         curve->attach(ui->plot);
     }
 
diff --git a/snapshotview.h b/snapshotview.h
--- a/snapshotview.h
+++ b/snapshotview.h
@@ -4,6 +4,7 @@
 #include <QMainWindow>
 #include <QVector>
 #include <QPointF>
+#include <QPen>
 #include <qwt_plot_curve.h>
 #include "plot.h"