Index: Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Plugin/DuneErosionPlugin.cs
===================================================================
diff -u -r8fe9bd87da92837297afa5cc804ccdac8b64900d -rd4a4f6fc0626fe052dc73d5bdba16a28a82e299d
--- Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Plugin/DuneErosionPlugin.cs	(.../DuneErosionPlugin.cs)	(revision 8fe9bd87da92837297afa5cc804ccdac8b64900d)
+++ Ringtoets/DuneErosion/src/Ringtoets.DuneErosion.Plugin/DuneErosionPlugin.cs	(.../DuneErosionPlugin.cs)	(revision d4a4f6fc0626fe052dc73d5bdba16a28a82e299d)
@@ -21,6 +21,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.Drawing;
 using System.Linq;
 using System.Windows.Forms;
 using Core.Common.Base;
@@ -94,6 +95,9 @@
             yield return new TreeNodeInfo<DuneLocationCalculationsGroupContext>
             {
                 Text = context => RingtoetsCommonDataResources.HydraulicBoundaryConditions_DisplayName,
+                ForeColor = context => context.WrappedData.Any()
+                                           ? Color.FromKnownColor(KnownColor.ControlText)
+                                           : Color.FromKnownColor(KnownColor.GrayText),
                 Image = context => RingtoetsCommonFormsResources.GeneralFolderIcon,
                 ContextMenuStrip = DuneLocationCalculationsGroupContextMenuStrip,
                 ChildNodeObjects = DuneLocationCalculationsGroupContextChildNodeObjects
Index: Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Plugin.Test/DuneErosionPluginTest.cs
===================================================================
diff -u -rca120cd6cf35b91c0acf363a4e6fc9638ec3f45f -rd4a4f6fc0626fe052dc73d5bdba16a28a82e299d
--- Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Plugin.Test/DuneErosionPluginTest.cs	(.../DuneErosionPluginTest.cs)	(revision ca120cd6cf35b91c0acf363a4e6fc9638ec3f45f)
+++ Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Plugin.Test/DuneErosionPluginTest.cs	(.../DuneErosionPluginTest.cs)	(revision d4a4f6fc0626fe052dc73d5bdba16a28a82e299d)
@@ -135,7 +135,7 @@
                 PluginTestHelper.AssertViewInfoDefined(
                     viewInfos,
                     typeof(DuneLocationCalculationsContext),
-                    typeof(IEnumerable<DuneLocationCalculation>),
+                    typeof(IObservableEnumerable<DuneLocationCalculation>),
                     typeof(DuneLocationCalculationsView));
             }
         }
Index: Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Plugin.Test/TreeNodeInfos/DuneLocationCalculationsGroupContextTreeNodeInfoTest.cs
===================================================================
diff -u -r2fa288c2dca73f346a31c54f2ac2c89b67387ca9 -rd4a4f6fc0626fe052dc73d5bdba16a28a82e299d
--- Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Plugin.Test/TreeNodeInfos/DuneLocationCalculationsGroupContextTreeNodeInfoTest.cs	(.../DuneLocationCalculationsGroupContextTreeNodeInfoTest.cs)	(revision 2fa288c2dca73f346a31c54f2ac2c89b67387ca9)
+++ Ringtoets/DuneErosion/test/Ringtoets.DuneErosion.Plugin.Test/TreeNodeInfos/DuneLocationCalculationsGroupContextTreeNodeInfoTest.cs	(.../DuneLocationCalculationsGroupContextTreeNodeInfoTest.cs)	(revision d4a4f6fc0626fe052dc73d5bdba16a28a82e299d)
@@ -52,7 +52,7 @@
 
                 // Assert
                 Assert.IsNotNull(info.Text);
-                Assert.IsNull(info.ForeColor);
+                Assert.IsNotNull(info.ForeColor);
                 Assert.IsNotNull(info.Image);
                 Assert.IsNotNull(info.ContextMenuStrip);
                 Assert.IsNull(info.EnsureVisibleOnCreate);
@@ -89,6 +89,53 @@
         }
 
         [Test]
+        public void ForeColor_LocationsEmpty_ReturnGrayText()
+        {
+            // Setup
+            var assessmentSection = new AssessmentSectionStub();
+            var failureMechanism = new DuneErosionFailureMechanism();
+            var locations = new ObservableList<DuneLocation>();
+
+            var calculationsGroupContext = new DuneLocationCalculationsGroupContext(locations, failureMechanism, assessmentSection);
+
+            using (var plugin = new DuneErosionPlugin())
+            {
+                TreeNodeInfo info = GetInfo(plugin);
+
+                // Call
+                Color textColor = info.ForeColor(calculationsGroupContext);
+
+                // Assert
+                Assert.AreEqual(Color.FromKnownColor(KnownColor.GrayText), textColor);
+            }
+        }
+
+        [Test]
+        public void ForeColor_WithLocations_ReturnControlText()
+        {
+            // Setup
+            var assessmentSection = new AssessmentSectionStub();
+            var failureMechanism = new DuneErosionFailureMechanism();
+            var locations = new ObservableList<DuneLocation>
+            {
+                new TestDuneLocation()
+            };
+
+            var calculationsGroupContext = new DuneLocationCalculationsGroupContext(locations, failureMechanism, assessmentSection);
+
+            using (var plugin = new DuneErosionPlugin())
+            {
+                TreeNodeInfo info = GetInfo(plugin);
+
+                // Call
+                Color textColor = info.ForeColor(calculationsGroupContext);
+
+                // Assert
+                Assert.AreEqual(Color.FromKnownColor(KnownColor.ControlText), textColor);
+            }
+        }
+
+        [Test]
         public void Image_Always_ReturnsGeneralFolderIcon()
         {
             // Setup