Index: Core/Components/src/Core.Components.Charting/Data/ChartAreaData.cs
===================================================================
diff -u -r67284323e2785c651633d9c52049ba12a9c70e6a -rc860e9ad4a6092ccf675c6b268697b2e9ab58461
--- Core/Components/src/Core.Components.Charting/Data/ChartAreaData.cs	(.../ChartAreaData.cs)	(revision 67284323e2785c651633d9c52049ba12a9c70e6a)
+++ Core/Components/src/Core.Components.Charting/Data/ChartAreaData.cs	(.../ChartAreaData.cs)	(revision c860e9ad4a6092ccf675c6b268697b2e9ab58461)
@@ -20,6 +20,7 @@
 // All rights reserved.
 
 using System;
+using System.Drawing;
 using Core.Components.Charting.Styles;
 
 namespace Core.Components.Charting.Data
@@ -30,16 +31,35 @@
     public class ChartAreaData : PointBasedChartData
     {
         /// <summary>
+        /// Creates a new instance of <see cref="ChartAreaData"/> with default styling.
+        /// </summary>
+        /// <param name="name">The name of the <see cref="ChartAreaData"/>.</param>
+        /// <exception cref="ArgumentException">Thrown when <paramref name="name"/> is 
+        /// <c>null</c> or only whitespace.</exception>
+        public ChartAreaData(string name)
+            : this(name, new ChartAreaStyle(Color.Gray, Color.Black, 2)) {}
+
+        /// <summary>
         /// Creates a new instance of <see cref="ChartAreaData"/>.
         /// </summary>
         /// <param name="name">The name of the <see cref="ChartAreaData"/>.</param>
+        /// <param name="style">The style of the data.</param>
         /// <exception cref="ArgumentException">Thrown when <paramref name="name"/> is 
         /// <c>null</c> or only whitespace.</exception>
-        public ChartAreaData(string name) : base(name) {}
+        /// <exception cref="ArgumentNullException">Thrown when <paramref name="style"/>
+        /// is <c>null</c>.</exception>
+        public ChartAreaData(string name, ChartAreaStyle style) : base(name)
+        {
+            if (style == null)
+            {
+                throw new ArgumentNullException(nameof(style));
+            }
+            Style = style;
+        }
 
         /// <summary>
-        /// Gets or sets the style of the chart area.
+        /// Gets the style of the chart area.
         /// </summary>
-        public ChartAreaStyle Style { get; set; }
+        public ChartAreaStyle Style { get; }
     }
 }
\ No newline at end of file
Index: Core/Components/src/Core.Components.OxyPlot/Converter/ChartAreaDataConverter.cs
===================================================================
diff -u -r2d704a409d762d8fb54d2f8be285246861019ea0 -rc860e9ad4a6092ccf675c6b268697b2e9ab58461
--- Core/Components/src/Core.Components.OxyPlot/Converter/ChartAreaDataConverter.cs	(.../ChartAreaDataConverter.cs)	(revision 2d704a409d762d8fb54d2f8be285246861019ea0)
+++ Core/Components/src/Core.Components.OxyPlot/Converter/ChartAreaDataConverter.cs	(.../ChartAreaDataConverter.cs)	(revision c860e9ad4a6092ccf675c6b268697b2e9ab58461)
@@ -46,12 +46,9 @@
 
         protected override void SetSeriesStyle(ChartAreaData data, AreaSeries series)
         {
-            if (data.Style != null)
-            {
-                series.Fill = ChartDataHelper.Convert(data.Style.FillColor);
-                series.Color = ChartDataHelper.Convert(data.Style.StrokeColor);
-                series.StrokeThickness = data.Style.Width;
-            }
+            series.Fill = ChartDataHelper.Convert(data.Style.FillColor);
+            series.Color = ChartDataHelper.Convert(data.Style.StrokeColor);
+            series.StrokeThickness = data.Style.Width;
         }
     }
 }
\ No newline at end of file
Index: Core/Components/test/Core.Components.Charting.Test/Data/ChartAreaDataTest.cs
===================================================================
diff -u -r67284323e2785c651633d9c52049ba12a9c70e6a -rc860e9ad4a6092ccf675c6b268697b2e9ab58461
--- Core/Components/test/Core.Components.Charting.Test/Data/ChartAreaDataTest.cs	(.../ChartAreaDataTest.cs)	(revision 67284323e2785c651633d9c52049ba12a9c70e6a)
+++ Core/Components/test/Core.Components.Charting.Test/Data/ChartAreaDataTest.cs	(.../ChartAreaDataTest.cs)	(revision c860e9ad4a6092ccf675c6b268697b2e9ab58461)
@@ -20,8 +20,10 @@
 // All rights reserved.
 
 using System;
+using System.Drawing;
 using Core.Common.TestUtil;
 using Core.Components.Charting.Data;
+using Core.Components.Charting.Styles;
 using NUnit.Framework;
 
 namespace Core.Components.Charting.Test.Data
@@ -39,6 +41,9 @@
             Assert.AreEqual("test data", data.Name);
             Assert.IsEmpty(data.Points);
             Assert.IsInstanceOf<PointBasedChartData>(data);
+            Assert.AreEqual(Color.Gray, data.Style.FillColor);
+            Assert.AreEqual(Color.Black, data.Style.StrokeColor);
+            Assert.AreEqual(2, data.Style.Width);
         }
 
         [Test]
@@ -54,5 +59,32 @@
             const string expectedMessage = "A name must be set to the chart data.";
             TestHelper.AssertThrowsArgumentExceptionAndTestMessage<ArgumentException>(test, expectedMessage);
         }
+
+        [Test]
+        public void Constructor_StyleNull_ThrowArgumentNullException()
+        {
+            // Call
+            TestDelegate test = () => new ChartAreaData("test data", null);
+
+            // Assert
+            var exception = Assert.Throws<ArgumentNullException>(test);
+            Assert.AreEqual("style", exception.ParamName);
+        }
+
+        [Test]
+        public void Constructor_WithStyle_ExpectedValue()
+        {
+            // Setup
+            var style = new ChartAreaStyle(Color.Red, Color.Fuchsia, 3);
+
+            // Call
+            var data = new ChartAreaData("test data", style);
+
+            // Assert
+            Assert.AreEqual("test data", data.Name);
+            Assert.IsEmpty(data.Points);
+            Assert.IsInstanceOf<PointBasedChartData>(data);
+            Assert.AreSame(style, data.Style);
+        }
     }
 }
\ No newline at end of file
Index: Core/Components/test/Core.Components.OxyPlot.Test/Converter/ChartAreaDataConverterTest.cs
===================================================================
diff -u -r2d704a409d762d8fb54d2f8be285246861019ea0 -rc860e9ad4a6092ccf675c6b268697b2e9ab58461
--- Core/Components/test/Core.Components.OxyPlot.Test/Converter/ChartAreaDataConverterTest.cs	(.../ChartAreaDataConverterTest.cs)	(revision 2d704a409d762d8fb54d2f8be285246861019ea0)
+++ Core/Components/test/Core.Components.OxyPlot.Test/Converter/ChartAreaDataConverterTest.cs	(.../ChartAreaDataConverterTest.cs)	(revision c860e9ad4a6092ccf675c6b268697b2e9ab58461)
@@ -87,10 +87,7 @@
             var converter = new ChartAreaDataConverter();
             var areaSeries = new AreaSeries();
             Color expectedColor = Color.FromKnownColor(color);
-            var data = new ChartAreaData("test")
-            {
-                Style = new ChartAreaStyle(expectedColor, Color.Red, 3)
-            };
+            var data = new ChartAreaData("test", new ChartAreaStyle(expectedColor, Color.Red, 3));
 
             // Call
             converter.ConvertSeriesProperties(data, areaSeries);
@@ -109,10 +106,7 @@
             var converter = new ChartAreaDataConverter();
             var areaSeries = new AreaSeries();
             Color expectedColor = Color.FromKnownColor(color);
-            var data = new ChartAreaData("test")
-            {
-                Style = new ChartAreaStyle(Color.Red, expectedColor, 3)
-            };
+            var data = new ChartAreaData("test", new ChartAreaStyle(Color.Red, expectedColor, 3));
 
             // Call
             converter.ConvertSeriesProperties(data, areaSeries);
@@ -130,10 +124,7 @@
             // Setup
             var converter = new ChartAreaDataConverter();
             var areaSeries = new AreaSeries();
-            var data = new ChartAreaData("test")
-            {
-                Style = new ChartAreaStyle(Color.Red, Color.Red, width)
-            };
+            var data = new ChartAreaData("test", new ChartAreaStyle(Color.Red, Color.Red, width));
 
             // Call
             converter.ConvertSeriesProperties(data, areaSeries);
Index: Core/Components/test/Core.Components.OxyPlot.Test/DataSeries/ChartAreaDataSeriesTest.cs
===================================================================
diff -u -r271bd5ffd4d61da4324eb50957f062b14c4c6958 -rc860e9ad4a6092ccf675c6b268697b2e9ab58461
--- Core/Components/test/Core.Components.OxyPlot.Test/DataSeries/ChartAreaDataSeriesTest.cs	(.../ChartAreaDataSeriesTest.cs)	(revision 271bd5ffd4d61da4324eb50957f062b14c4c6958)
+++ Core/Components/test/Core.Components.OxyPlot.Test/DataSeries/ChartAreaDataSeriesTest.cs	(.../ChartAreaDataSeriesTest.cs)	(revision c860e9ad4a6092ccf675c6b268697b2e9ab58461)
@@ -49,7 +49,7 @@
         public void Constructor_ChartAreaDataWithTestProperties_ChartAreaDataSeriesCreatedAccordingly()
         {
             // Setup
-            var chartAreaData = new ChartAreaData("Test name");
+            var chartAreaData = new ChartAreaData("Test name", new ChartAreaStyle(Color.Red, Color.Blue, 3));
 
             SetChartAreaDataTestProperties(chartAreaData);
 
@@ -66,7 +66,7 @@
         public void Update_ChartAreaDataWithTestProperties_ChartAreaDataSeriesUpdatedAccordingly()
         {
             // Setup
-            var chartAreaData = new ChartAreaData("Test name");
+            var chartAreaData = new ChartAreaData("Test name", new ChartAreaStyle(Color.Red, Color.Blue, 3));
             var chartAreaDataSeries = new ChartAreaDataSeries(chartAreaData);
 
             SetChartAreaDataTestProperties(chartAreaData);
@@ -133,7 +133,6 @@
         {
             chartAreaData.Name = "Another name";
             chartAreaData.IsVisible = false;
-            chartAreaData.Style = new ChartAreaStyle(Color.Red, Color.Blue, 3);
             chartAreaData.Points = new[]
             {
                 new Point2D(1.1, 2.2)
@@ -157,9 +156,9 @@
             Assert.AreEqual("Test name", chartAreaDataSeries.Title);
             Assert.IsTrue(chartAreaDataSeries.IsVisible);
 
-            Assert.AreEqual(2, chartAreaDataSeries.StrokeThickness);
-            Assert.AreEqual(OxyColor.FromArgb(0, 0, 0, 1), chartAreaDataSeries.Color);
-            Assert.AreEqual(OxyColor.FromArgb(0, 0, 0, 1), chartAreaDataSeries.Fill);
+            Assert.AreEqual(3, chartAreaDataSeries.StrokeThickness);
+            Assert.AreEqual(OxyColor.FromArgb(Color.Red.A, Color.Red.R, Color.Red.G, Color.Red.B), chartAreaDataSeries.Fill);
+            Assert.AreEqual(OxyColor.FromArgb(Color.Blue.A, Color.Blue.R, Color.Blue.G, Color.Blue.B), chartAreaDataSeries.Color);
 
             Assert.AreEqual(0, chartAreaDataSeries.Points.Count);
         }
Index: Demo/Ringtoets/src/Demo.Ringtoets/Commands/OpenChartViewCommand.cs
===================================================================
diff -u -rd2c15316d45ca54af4dfaf5f0ff9d0e61d763dda -rc860e9ad4a6092ccf675c6b268697b2e9ab58461
--- Demo/Ringtoets/src/Demo.Ringtoets/Commands/OpenChartViewCommand.cs	(.../OpenChartViewCommand.cs)	(revision d2c15316d45ca54af4dfaf5f0ff9d0e61d763dda)
+++ Demo/Ringtoets/src/Demo.Ringtoets/Commands/OpenChartViewCommand.cs	(.../OpenChartViewCommand.cs)	(revision c860e9ad4a6092ccf675c6b268697b2e9ab58461)
@@ -116,9 +116,9 @@
                 }
             };
 
-            var area1 = new ChartAreaData(Resources.OpenChartViewCommand_Execute_Area_one)
+            var area1 = new ChartAreaData(Resources.OpenChartViewCommand_Execute_Area_one,
+                                          new ChartAreaStyle(Color.DarkSeaGreen, Color.DarkGreen, 5))
             {
-                Style = new ChartAreaStyle(Color.DarkSeaGreen, Color.DarkGreen, 5),
                 Points = new[]
                 {
                     new Point2D(0.0, 0.500),
@@ -157,9 +157,9 @@
                 }
             };
 
-            var area2 = new ChartAreaData(Resources.OpenChartViewCommand_Execute_Area_two)
+            var area2 = new ChartAreaData(Resources.OpenChartViewCommand_Execute_Area_two,
+                                          new ChartAreaStyle(Color.FromArgb(120, Color.Wheat), Color.DarkOrange, 2))
             {
-                Style = new ChartAreaStyle(Color.FromArgb(120, Color.Wheat), Color.DarkOrange, 2),
                 Points = new[]
                 {
                     new Point2D(0.1, 0.723 - 0.5),