diff --git a/apps/client/src/stylesheets/theme-next/shell.css b/apps/client/src/stylesheets/theme-next/shell.css
index b3b22f3d8..c709e457a 100644
--- a/apps/client/src/stylesheets/theme-next/shell.css
+++ b/apps/client/src/stylesheets/theme-next/shell.css
@@ -886,6 +886,80 @@ body.layout-horizontal .tab-row-container {
     border-bottom: 1px solid var(--launcher-pane-horiz-border-color);
 }
 
+body.electron.background-effects.layout-horizontal .tab-row-container {
+    border-bottom: unset !important;
+}
+
+body.electron.background-effects.layout-horizontal .note-tab-wrapper {
+    top: 1px;
+}
+
+body.electron.background-effects.layout-horizontal .tab-row-container .toggle-button {
+    position: relative;
+}
+
+body.electron.background-effects.layout-horizontal .tab-row-container .toggle-button:after {
+    content: "";
+    position: absolute;
+    bottom: 0;
+    left: -10px;
+    right: -10px;
+    top: 29px;
+    height: 1px;
+    border-bottom: 1px solid var(--launcher-pane-horiz-border-color);
+}
+
+body.electron.background-effects.layout-horizontal .tab-row-container .tab-scroll-button-left,
+body.electron.background-effects.layout-horizontal .tab-row-container .tab-scroll-button-right {
+    position: relative;
+}
+
+body.electron.background-effects.layout-horizontal .tab-row-container .tab-scroll-button-left:after,
+body.electron.background-effects.layout-horizontal .tab-row-container .tab-scroll-button-right:after {
+    content: "";
+    position: absolute;
+    bottom: 0;
+    left: 0px;
+    right: 0px;
+    height: 1px;
+    border-bottom: 1px solid var(--launcher-pane-horiz-border-color);
+}
+
+body.electron.background-effects.layout-horizontal .tab-row-container .note-tab[active]:before {
+    content: "";
+    position: absolute;
+    bottom: 0;
+    left: -32768px;
+    top: var(--tab-height);
+    right: calc(100% - 1px);
+    height: 1px;
+    border-bottom: 1px solid var(--launcher-pane-horiz-border-color);
+}
+
+body.electron.background-effects.layout-horizontal .tab-row-container .note-tab[active]:after {
+    content: "";
+    position: absolute;
+    bottom: 0;
+    left: 100%;
+    top: var(--tab-height);
+    right: 0;
+    width: 100vw;
+    height: 1px;
+    border-bottom: 1px solid var(--launcher-pane-horiz-border-color);
+}
+
+body.electron.background-effects.layout-horizontal .tab-row-container .note-new-tab:before {
+    content: "";
+    position: absolute;
+    bottom: 0;
+    left: -4px;
+    top: calc(var(--tab-height), -1);
+    right: 0;
+    width: 100vw;
+    height: 1px;
+    border-bottom: 1px solid var(--launcher-pane-horiz-border-color);
+}
+
 body.layout-vertical.electron.platform-darwin .tab-row-container {
     border-bottom: 1px solid var(--subtle-border-color);
 }