diff --git a/app/src/main/java/info/nightscout/androidaps/plugins/IobCobCalculator/AutosensData.java b/app/src/main/java/info/nightscout/androidaps/plugins/IobCobCalculator/AutosensData.java
index 6a651a5a79..693a6fad55 100644
--- a/app/src/main/java/info/nightscout/androidaps/plugins/IobCobCalculator/AutosensData.java
+++ b/app/src/main/java/info/nightscout/androidaps/plugins/IobCobCalculator/AutosensData.java
@@ -156,7 +156,7 @@ public class AutosensData implements DataPointWithLabelInterface {
 
     @Override
     public float getSize() {
-        return 1f;
+        return 0.5f;
     }
 
     @Override
diff --git a/app/src/main/java/info/nightscout/androidaps/plugins/Overview/graphData/GraphData.java b/app/src/main/java/info/nightscout/androidaps/plugins/Overview/graphData/GraphData.java
index e3752a3861..25e7cb4af8 100644
--- a/app/src/main/java/info/nightscout/androidaps/plugins/Overview/graphData/GraphData.java
+++ b/app/src/main/java/info/nightscout/androidaps/plugins/Overview/graphData/GraphData.java
@@ -396,7 +396,7 @@ public class GraphData {
         cobData = cobArray.toArray(cobData);
         cobSeries = new FixedLineGraphSeries<>(cobData);
         cobSeries.setDrawBackground(true);
-        cobSeries.setBackgroundColor(0xB0FFFFFF & MainApp.gc(R.color.cob)); //50%
+        cobSeries.setBackgroundColor(0x80FFFFFF & MainApp.gc(R.color.cob)); //50%
         cobSeries.setColor(MainApp.gc(R.color.cob));
         cobSeries.setThickness(3);