diff --git a/Changelog.md b/Changelog.md
index 393a91c01..67dc50b7b 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -185,6 +185,8 @@
- [#480](../../issues/480) - Disable Scroll Wheel for tab selection
You can control this behavior by using `IsMouseWheelScrollingEnabled` on `Ribbon`
- [#484](../../issues/484) - Add special style/template for MenuItem with set description
+ - [#488](../../issues/488) - Display border around content area of RibbonTabControl
+ You can now use `Fluent.Ribbon.Values.RibbonTabControl.Content.BorderThickness` to control the thickness of the border around the content area of `RibbonTabControl`
## 5.0.2
- [#437](../../issues/437) - "Could not load ControlzEx"
diff --git a/Fluent.Ribbon/Themes/Colors/BaseDark.xaml b/Fluent.Ribbon/Themes/Colors/BaseDark.xaml
index 030a78538..e3d3690bd 100644
--- a/Fluent.Ribbon/Themes/Colors/BaseDark.xaml
+++ b/Fluent.Ribbon/Themes/Colors/BaseDark.xaml
@@ -107,6 +107,7 @@
+
diff --git a/Fluent.Ribbon/Themes/Colors/BaseLight.xaml b/Fluent.Ribbon/Themes/Colors/BaseLight.xaml
index de994a905..720ed6c37 100644
--- a/Fluent.Ribbon/Themes/Colors/BaseLight.xaml
+++ b/Fluent.Ribbon/Themes/Colors/BaseLight.xaml
@@ -107,6 +107,7 @@
+
diff --git a/Fluent.Ribbon/Themes/Colors/Colors.xaml b/Fluent.Ribbon/Themes/Colors/Colors.xaml
index b563abc26..7a897dc6b 100644
--- a/Fluent.Ribbon/Themes/Colors/Colors.xaml
+++ b/Fluent.Ribbon/Themes/Colors/Colors.xaml
@@ -159,6 +159,7 @@
+
diff --git a/Fluent.Ribbon/Themes/Common.xaml b/Fluent.Ribbon/Themes/Common.xaml
index 1bc993657..c147eb3a4 100644
--- a/Fluent.Ribbon/Themes/Common.xaml
+++ b/Fluent.Ribbon/Themes/Common.xaml
@@ -1,7 +1,10 @@
-
+
+ 0
+
+
diff --git a/Fluent.Ribbon/Themes/Controls/Ribbon.xaml b/Fluent.Ribbon/Themes/Controls/Ribbon.xaml
index 95136b198..b1be5f0cf 100644
--- a/Fluent.Ribbon/Themes/Controls/Ribbon.xaml
+++ b/Fluent.Ribbon/Themes/Controls/Ribbon.xaml
@@ -17,7 +17,9 @@
TargetType="{x:Type ContextMenu}" />
-
+
diff --git a/Fluent.Ribbon/Themes/Controls/RibbonTabControl.xaml b/Fluent.Ribbon/Themes/Controls/RibbonTabControl.xaml
index dd1d5abf0..5b135471e 100644
--- a/Fluent.Ribbon/Themes/Controls/RibbonTabControl.xaml
+++ b/Fluent.Ribbon/Themes/Controls/RibbonTabControl.xaml
@@ -233,6 +233,8 @@
Grid.Row="1"
Grid.RowSpan="1"
Background="{DynamicResource Fluent.Ribbon.Brushes.RibbonTabControl.Content.Background}"
+ BorderBrush="{DynamicResource Fluent.Ribbon.Brushes.RibbonTabControl.Content.BorderBrush}"
+ BorderThickness="{DynamicResource Fluent.Ribbon.Values.RibbonTabControl.Content.BorderThickness}"
TextElement.Foreground="{DynamicResource Fluent.Ribbon.Brushes.RibbonTabControl.Content.Foreground}"
KeyboardNavigation.TabNavigation="Local"
KeyboardNavigation.DirectionalNavigation="Contained"