diff --git a/img/shadow_left.png b/img/shadow_left.png
deleted file mode 100644
index 0839fd62..00000000
Binary files a/img/shadow_left.png and /dev/null differ
diff --git a/img/shadow_top.png b/img/shadow_top.png
deleted file mode 100644
index ddb1ea38..00000000
Binary files a/img/shadow_top.png and /dev/null differ
diff --git a/lib/modulekit/lang b/lib/modulekit/lang
index 40d2e911..1ee4ff78 160000
--- a/lib/modulekit/lang
+++ b/lib/modulekit/lang
@@ -1 +1 @@
-Subproject commit 40d2e911bf43708b26aea633e53cd3d6e6884312
+Subproject commit 1ee4ff782c9addb951cbf416bcafb59ac618bcff
diff --git a/style.css b/style.css
index 3571b2f4..f88b3854 100644
--- a/style.css
+++ b/style.css
@@ -39,8 +39,7 @@ a:active {
   bottom: 0;
   width: 5px;
   z-index: 10000;
-  background-image: url(img/shadow_left.png);
-  background-repeat: repeat-y;
+  background: linear-gradient(to right, #5656566f, #56565600);
 }
 
 #sidebar {
@@ -197,8 +196,7 @@ a:active {
   bottom: auto;
   height: 5px;
   width: auto;
-  background-image: url(img/shadow_top.png);
-  background-repeat: repeat-x;
+  background: linear-gradient(to bottom, #5656566f, #56565600);
 }
 #sidebar > #content {
   overflow: visible;