diff --git a/src/AtomUI.Controls/AtomUIOSSControlThemesProvider.axaml b/src/AtomUI.Controls/AtomUIOSSControlThemesProvider.axaml
index 6b0d48af1..15acbdcf7 100644
--- a/src/AtomUI.Controls/AtomUIOSSControlThemesProvider.axaml
+++ b/src/AtomUI.Controls/AtomUIOSSControlThemesProvider.axaml
@@ -17,6 +17,7 @@
+
diff --git a/src/AtomUI.Controls/Embedding/Themes/EmbeddableControlRootTheme.axaml b/src/AtomUI.Controls/Embedding/Themes/EmbeddableControlRootTheme.axaml
new file mode 100644
index 000000000..9c987b53e
--- /dev/null
+++ b/src/AtomUI.Controls/Embedding/Themes/EmbeddableControlRootTheme.axaml
@@ -0,0 +1,30 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/src/AtomUI.Controls/Embedding/Themes/EmbeddingThemeConstants.cs b/src/AtomUI.Controls/Embedding/Themes/EmbeddingThemeConstants.cs
new file mode 100644
index 000000000..5edfdd0ea
--- /dev/null
+++ b/src/AtomUI.Controls/Embedding/Themes/EmbeddingThemeConstants.cs
@@ -0,0 +1,7 @@
+namespace AtomUI.Controls.Themes;
+
+internal static class EmbeddingThemeConstants
+{
+ public const string TransparencyFallbackPart = "PART_TransparencyFallback";
+ public const string ContentPresenterPart = "PART_ContentPresenter";
+}
\ No newline at end of file
diff --git a/src/AtomUI.Controls/ScrollBar/Themes/ScrollViewerTheme.axaml b/src/AtomUI.Controls/ScrollBar/Themes/ScrollViewerTheme.axaml
index f1419e372..95cb3c8e8 100644
--- a/src/AtomUI.Controls/ScrollBar/Themes/ScrollViewerTheme.axaml
+++ b/src/AtomUI.Controls/ScrollBar/Themes/ScrollViewerTheme.axaml
@@ -31,7 +31,7 @@
Orientation="Vertical"
Grid.Row="0"
Grid.Column="1" />
-