diff --git a/plotview.cpp b/plotview.cpp
index af5c57f..5442835 100644
--- a/plotview.cpp
+++ b/plotview.cpp
@@ -32,12 +32,7 @@
 
 PlotView::PlotView()
 {
-    for (int i = 0; i < 128; i++) {
-        colormap[i] = qRgb(i/2, i*1.5, i*1.5);
-    }
-    for (int i = 128; i < 256; i++) {
-        colormap[i] = qRgb(64 + (i-128)*1.5, 192+(i-128)/2, 192+(i-128)/2);
-    }
+
 }
 
 void PlotView::refreshSources()
diff --git a/plotview.h b/plotview.h
index 7548895..9a9d3be 100644
--- a/plotview.h
+++ b/plotview.h
@@ -48,7 +48,6 @@ private:
     bool selection = false;
     std::pair<off_t, off_t> selectionTime;
     std::pair<float, float> selectionFreq;
-    QRgb colormap[255];
 
     void refreshSources();
 };
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