Index: Demo/Ringtoets/src/Demo.Ringtoets/Commands/AddNewDemoAssessmentSectionCommand.cs
===================================================================
diff -u -r2ab087c5f7b254eb7ea6d167b122afaea10b0ff6 -rf9db544ad22552799aaaedc2a154abd8765f7099
--- Demo/Ringtoets/src/Demo.Ringtoets/Commands/AddNewDemoAssessmentSectionCommand.cs	(.../AddNewDemoAssessmentSectionCommand.cs)	(revision 2ab087c5f7b254eb7ea6d167b122afaea10b0ff6)
+++ Demo/Ringtoets/src/Demo.Ringtoets/Commands/AddNewDemoAssessmentSectionCommand.cs	(.../AddNewDemoAssessmentSectionCommand.cs)	(revision f9db544ad22552799aaaedc2a154abd8765f7099)
@@ -123,9 +123,9 @@
             demoAssessmentSection.BackgroundData.IsVisible = targetConfiguration.IsVisible;
             demoAssessmentSection.BackgroundData.Transparency = targetConfiguration.Transparency;
             demoAssessmentSection.BackgroundData.IsConfigured = targetConfiguration.IsConfigured;
-            demoAssessmentSection.BackgroundData.Parameters.Add("SourceCapabilitiesUrl", targetConfiguration.SourceCapabilitiesUrl);
-            demoAssessmentSection.BackgroundData.Parameters.Add("SelectedCapabilityIdentifier", targetConfiguration.SelectedCapabilityIdentifier);
-            demoAssessmentSection.BackgroundData.Parameters.Add("PreferredFormat", targetConfiguration.PreferredFormat);
+            demoAssessmentSection.BackgroundData.Parameters.Add(BackgroundDataIdentifiers.SourceCapabilitiesUrl, targetConfiguration.SourceCapabilitiesUrl);
+            demoAssessmentSection.BackgroundData.Parameters.Add(BackgroundDataIdentifiers.SelectedCapabilityIdentifier, targetConfiguration.SelectedCapabilityIdentifier);
+            demoAssessmentSection.BackgroundData.Parameters.Add(BackgroundDataIdentifiers.PreferredFormat, targetConfiguration.PreferredFormat);
         }
 
         private void InitializeDemoReferenceLine(AssessmentSection demoAssessmentSection)