diff --git a/themes/atom-dark-ui/tabs.css b/themes/atom-dark-ui/tabs.css
index 850faf978..1d41d72a7 100644
--- a/themes/atom-dark-ui/tabs.css
+++ b/themes/atom-dark-ui/tabs.css
@@ -2,8 +2,10 @@
   background: #161719;
   border: none;
   box-shadow: none;
-  border-bottom: 3px solid rgba(255, 255, 255, 0.1);
-  box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0.2);
+  border-bottom: 4px solid rgba(41, 44, 47, 1);
+  box-shadow:
+    inset 0 -1px 0 rgba(255, 255, 255, 0.2),
+    0 -20px 0 rgba(0, 0, 0, 1);
 }
 
 .tab {
@@ -14,16 +16,18 @@
     inset 0 1px 0 rgba(255, 255, 255, 0.1),
     inset 1px 0 0 rgba(255, 255, 255, 0.05),
     inset -1px 0 0 rgba(255, 255, 255, 0.05);
-  color: #ccc;
+  color: #b9bdc1;
   padding: 5px 20px;
 }
 
 .tab.active {
-  background-image: -webkit-linear-gradient(#444, #222);
+  background-image: -webkit-linear-gradient(#43484d, #303337);
   color: #fff;
   padding-top: 6px;
+  text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.2);
   box-shadow:
-    inset 0 1px 0 rgba(0, 0, 0, 0.2),
+    inset 0 1px 0 rgba(0, 0, 0, 0.5),
+    inset 0 2px 0 rgba(255, 255, 255, 0.1),
     inset 1px 0 0 rgba(255, 255, 255, 0.1),
     inset -1px 0 0 rgba(255, 255, 255, 0.1);
 }