diff --git a/p/themes/Origine/origine.css b/p/themes/Origine/origine.css
index 86fecd269..4b41e1434 100644
--- a/p/themes/Origine/origine.css
+++ b/p/themes/Origine/origine.css
@@ -1132,7 +1132,8 @@ a:hover .icon {
 
 	.aside .toggle_aside,
 	#panel .close,
-	.dropdown-menu .toggle_aside {
+	.dropdown-menu .toggle_aside,
+	#slider .toggle_aside {
 		background-color: var(--background-color-light-shadowed);
 		border-bottom: 1px solid var(--border-color);
 	}
diff --git a/p/themes/Origine/origine.rtl.css b/p/themes/Origine/origine.rtl.css
index 88c235b79..8f0c9095a 100644
--- a/p/themes/Origine/origine.rtl.css
+++ b/p/themes/Origine/origine.rtl.css
@@ -1132,7 +1132,8 @@ a:hover .icon {
 
 	.aside .toggle_aside,
 	#panel .close,
-	.dropdown-menu .toggle_aside {
+	.dropdown-menu .toggle_aside,
+	#slider .toggle_aside {
 		background-color: var(--background-color-light-shadowed);
 		border-bottom: 1px solid var(--border-color);
 	}