diff --git a/toolkit/themes/shared/design-system/dist/tokens-shared.css b/toolkit/themes/shared/design-system/dist/tokens-shared.css
index 15c0d98a18b4f19e7f2e03d2b78066b0353f416a..b32f6244c7a07e93894bab422691a605456034a1 100644
--- a/toolkit/themes/shared/design-system/dist/tokens-shared.css
+++ b/toolkit/themes/shared/design-system/dist/tokens-shared.css
@@ -7,6 +7,8 @@
 
 @layer tokens-foundation, tokens-browser-theme, tokens-foundation-brand, tokens-foundation-nova, tokens-browser-theme-nova, tokens-foundation-brand-nova, tokens-prefers-contrast, tokens-prefers-contrast-nova, tokens-forced-colors, tokens-forced-colors-nova;
 
+@import url("chrome://browser/content/zen-styles/zen-theme.css");
+
 @layer tokens-foundation {
   :root,
   :host(.anonymous-content-host) {
@@ -424,8 +426,8 @@
     --panel-background-color-dimmed-further: var(--background-color-dimmed-further);
     --panel-border-color: light-dark(rgb(240, 240, 244), rgb(82, 82, 94));
     --panel-border-radius: var(--border-radius-medium);
-    --panel-box-shadow: 0 0 var(--panel-box-shadow-margin) hsla(0, 0%, 0%, 0.2);
-    --panel-box-shadow-margin: 4px;
+    --panel-box-shadow: var(--zen-big-shadow);
+    --panel-box-shadow-margin: 8px;
     --panel-menuitem-border-radius: var(--border-radius-small);
     --panel-menuitem-margin: var(--panel-menuitem-margin-block) var(--panel-menuitem-margin-inline);
     --panel-menuitem-margin-block: 0;
