diff --git a/samples/ControlCatalog/MainView.xaml.cs b/samples/ControlCatalog/MainView.xaml.cs
index f2d89a1325..0326946c08 100644
--- a/samples/ControlCatalog/MainView.xaml.cs
+++ b/samples/ControlCatalog/MainView.xaml.cs
@@ -49,8 +49,8 @@ namespace ControlCatalog
                             App.Fluent.Mode = FluentThemeMode.Light;
                         }
                         Application.Current.Styles[0] = App.Fluent;
-                        Application.Current.Styles[1] = App.DataGridFluent;
-                        Application.Current.Styles.Add(App.ColorPickerFluent);
+                        Application.Current.Styles[1] = App.ColorPickerFluent;
+                        Application.Current.Styles[2] = App.DataGridFluent;
                     }
                     else if (theme == CatalogTheme.FluentDark)
                     {
@@ -60,22 +60,22 @@ namespace ControlCatalog
                             App.Fluent.Mode = FluentThemeMode.Dark;
                         }
                         Application.Current.Styles[0] = App.Fluent;
-                        Application.Current.Styles[1] = App.DataGridFluent;
-                        Application.Current.Styles.Add(App.ColorPickerFluent);
+                        Application.Current.Styles[1] = App.ColorPickerFluent;
+                        Application.Current.Styles[2] = App.DataGridFluent;
                     }
                     else if (theme == CatalogTheme.DefaultLight)
                     {
                         App.Default.Mode = Avalonia.Themes.Default.SimpleThemeMode.Light;
                         Application.Current.Styles[0] = App.DefaultLight;
-                        Application.Current.Styles[1] = App.DataGridDefault;
-                        Application.Current.Styles.Add(App.ColorPickerDefault);
+                        Application.Current.Styles[1] = App.ColorPickerDefault;
+                        Application.Current.Styles[2] = App.DataGridDefault;
                     }
                     else if (theme == CatalogTheme.DefaultDark)
                     {
                         App.Default.Mode = Avalonia.Themes.Default.SimpleThemeMode.Dark;
                         Application.Current.Styles[0] = App.DefaultDark;
-                        Application.Current.Styles[1] = App.DataGridDefault;
-                        Application.Current.Styles.Add(App.ColorPickerDefault);
+                        Application.Current.Styles[1] = App.ColorPickerDefault;
+                        Application.Current.Styles[2] = App.DataGridDefault;
                     }
                 }
             };