diff --git a/src/ui/src/theme/theme.scss b/src/ui/src/theme/theme.scss
index 3c22ece9..aca6e5f0 100644
--- a/src/ui/src/theme/theme.scss
+++ b/src/ui/src/theme/theme.scss
@@ -63,6 +63,8 @@ $blue-palette: (
   // The `mat.core` mixin applies common styles used by multiple
   // components, such ripples, overlays, high contrast mode, etc.
   @include mat.core();
+  @include mat.app-background();
+  @include mat.elevation-classes();
 
   // Define the application's color palettes.
   $primary: mat.m2-define-palette($blue-palette, 600);