diff --git a/theme/themepacks.less b/theme/themepacks.less
index 4f28007772d..d36eb329b86 100644
--- a/theme/themepacks.less
+++ b/theme/themepacks.less
@@ -7,6 +7,7 @@
 @pxt_headerbar_background_glass: rgba(@pxt_headerbar_background, 0.25);
 @pxt_headerbar_foreground: @white;
 @pxt_headerbar_accent: darken(@pxt_headerbar_background, 8%);
+@pxt_headerbar_accent_smoke: lighten(desaturate(@pxt_headerbar_background, 40%), 18%);
 
 @pxt_content_background: #E4E7F1;
 @pxt_content_background_glass: rgba(@pxt_content_background, 0.25);
@@ -31,6 +32,7 @@
     --pxt-headerbar-background-glass: @pxt_headerbar_background_glass;
     --pxt-headerbar-foreground: @pxt_headerbar_foreground;
     --pxt-headerbar-accent: @pxt_headerbar_accent;
+    --pxt-headerbar-accent-smoke: @pxt_headerbar_accent_smoke;
     /// Content area
     --pxt-content-background: @pxt_content_background;
     --pxt-content-background-glass: @pxt_content_background_glass;