diff --git a/ApplicationLibCode/ProjectDataModel/RimPlotCurve.cpp b/ApplicationLibCode/ProjectDataModel/RimPlotCurve.cpp
index 8766a3989e..fbb6a5e3a0 100644
--- a/ApplicationLibCode/ProjectDataModel/RimPlotCurve.cpp
+++ b/ApplicationLibCode/ProjectDataModel/RimPlotCurve.cpp
@@ -1027,7 +1027,7 @@ void RimPlotCurve::updateCurveAppearance()
     QColor fillColor = RiaColorTools::toQColor( m_curveAppearance->fillColor() );
 
     fillColor = RiaColorTools::blendQColors( fillColor, QColor( Qt::white ), 3, 1 );
-    QBrush fillBrush( fillColor, m_curveAppearance->fillStyle() );
+    QBrush fillBrush( fillColor, fillStyle() );
     m_plotCurve->setAppearance( m_curveAppearance->lineStyle(),
                                 m_curveAppearance->interpolation(),
                                 m_curveAppearance->lineThickness(),
diff --git a/ApplicationLibCode/ProjectDataModel/RimPlotCurve.h b/ApplicationLibCode/ProjectDataModel/RimPlotCurve.h
index 1b2ecf1a40..79a96e9fe7 100644
--- a/ApplicationLibCode/ProjectDataModel/RimPlotCurve.h
+++ b/ApplicationLibCode/ProjectDataModel/RimPlotCurve.h
@@ -76,7 +76,7 @@ public:
     void                                setSymbolSize( int sizeInPixels );
     void                                setLineThickness( int thickness );
     void                                resetAppearance();
-    Qt::BrushStyle                      fillStyle() const;
+    virtual Qt::BrushStyle              fillStyle() const;
     void                                setFillStyle( Qt::BrushStyle brushStyle );
     void                                setFillColor( const cvf::Color3f& fillColor );
 
diff --git a/ApplicationLibCode/ProjectDataModel/RimStackablePlotCurve.cpp b/ApplicationLibCode/ProjectDataModel/RimStackablePlotCurve.cpp
index 52608ca978..163324a3a6 100644
--- a/ApplicationLibCode/ProjectDataModel/RimStackablePlotCurve.cpp
+++ b/ApplicationLibCode/ProjectDataModel/RimStackablePlotCurve.cpp
@@ -108,7 +108,6 @@ void RimStackablePlotCurve::setIsStacked( bool stacked )
 {
     m_isStacked = stacked;
 
-    updateStackingAppearance();
     stackingChanged.send( m_isStacked() );
 }
 
@@ -121,7 +120,6 @@ void RimStackablePlotCurve::fieldChangedByUi( const caf::PdmFieldHandle* changed
 
     if ( changedField == &m_isStacked )
     {
-        updateStackingAppearance();
         stackingChanged.send( m_isStacked() );
     }
     else if ( changedField == &m_isStackedWithPhaseColors )
@@ -171,21 +169,11 @@ void RimStackablePlotCurve::defaultUiOrdering( caf::PdmUiOrdering& uiOrdering )
 //--------------------------------------------------------------------------------------------------
 ///
 //--------------------------------------------------------------------------------------------------
-void RimStackablePlotCurve::updateCurveAppearance()
+Qt::BrushStyle RimStackablePlotCurve::fillStyle() const
 {
-    updateStackingAppearance();
+    auto selectedFillStyle = RimPlotCurve::fillStyle();
 
-    RimPlotCurve::updateCurveAppearance();
-}
+    if ( m_isStacked() && selectedFillStyle == Qt::NoBrush ) return Qt::SolidPattern;
 
-//--------------------------------------------------------------------------------------------------
-///
-//--------------------------------------------------------------------------------------------------
-void RimStackablePlotCurve::updateStackingAppearance()
-{
-    if ( !m_isStacked() && fillStyle() != Qt::NoBrush )
-    {
-        // Switch off area fill when turning off stacking.
-        setFillStyle( Qt::NoBrush );
-    }
+    return selectedFillStyle;
 }
diff --git a/ApplicationLibCode/ProjectDataModel/RimStackablePlotCurve.h b/ApplicationLibCode/ProjectDataModel/RimStackablePlotCurve.h
index 1f51f6af83..54d48d16a9 100644
--- a/ApplicationLibCode/ProjectDataModel/RimStackablePlotCurve.h
+++ b/ApplicationLibCode/ProjectDataModel/RimStackablePlotCurve.h
@@ -34,7 +34,7 @@ public:
     bool                          isStacked() const;
     bool                          isStackedWithPhaseColors() const;
     void                          setIsStacked( bool stacked );
-    void                          updateCurveAppearance() override;
+    Qt::BrushStyle                fillStyle() const override;
 
     void defaultUiOrdering( caf::PdmUiOrdering& uiOrdering );
     void stackingUiOrdering( caf::PdmUiOrdering& uiOrdering );
@@ -44,7 +44,6 @@ protected:
 
 private:
     void onFillColorChanged( const caf::SignalEmitter* emitter ) override;
-    void updateStackingAppearance();
 
 protected:
     caf::PdmField<bool> m_isStacked;
diff --git a/ApplicationLibCode/ProjectDataModel/Summary/RimSummaryPlot.cpp b/ApplicationLibCode/ProjectDataModel/Summary/RimSummaryPlot.cpp
index 237a4a8d14..72d135edb9 100644
--- a/ApplicationLibCode/ProjectDataModel/Summary/RimSummaryPlot.cpp
+++ b/ApplicationLibCode/ProjectDataModel/Summary/RimSummaryPlot.cpp
@@ -1831,12 +1831,6 @@ bool RimSummaryPlot::updateStackedCurveDataForAxis( RiuPlotAxis plotAxis )
     std::map<RiaDefines::PhaseType, size_t> curvePhaseCount;
     for ( RimSummaryCurve* curve : stackedCurves )
     {
-        // Apply a area filled style if it isn't already set
-        if ( curve->fillStyle() == Qt::NoBrush )
-        {
-            curve->setFillStyle( Qt::SolidPattern );
-        }
-
         curve->loadDataAndUpdate( false );
 
         curvePhaseCount[curve->phaseType()]++;