tweak tabs:

public/sass/_variables.dark.scss

@@ -63,8 +63,8 @@ $text-shadow-faint: 1px 1px 4px rgb(45, 45, 45);
 
 // gradients
 $brand-gradient: linear-gradient(to right, rgba(255,213,0,0.7) 0%, rgba(255,68,0,0.7) 99%, rgba(255,68,0,0.7) 100%);
-$page-gradient: linear-gradient(180deg, rgb(36, 36, 38) 40px, rgba(178, 31, 33, 0.03) 100px, rgba(253, 187, 47, 0.03));
-$dashboard-gradient: linear-gradient(180deg, #222426 10px, rgba(15, 15, 16, 1) 100px, rgb(10, 10, 11));
+$page-gradient: linear-gradient(180deg, #222426 10px, rgba(15, 15, 16, .03) 100px, rgba(10, 10, 11, .03));
+$dashboard-gradient: linear-gradient(180deg, #222426 10px, rgba(15, 15, 16, 0.3) 100px, rgb(10, 10, 0.3));
 
 // Links
 // -------------------------

public/sass/components/_tabbed_view.scss

@@ -10,7 +10,7 @@
     }
 
     .gf-tabs-link.active {
-      background-color: $panel-bg;
+      background-color: #0a0a0a;
     }
     .tabbed-view-body {
       min-height: 200px;

public/sass/components/_tabs.scss

@@ -62,7 +62,7 @@
   &.active:focus {
     @include border-radius(3px);
     border-color: rgba(216, 131, 40, 0.77);
-    border-bottom: 2px solid $panel-bg;
+    border-bottom: 2px solid #0a0a0a;
     color: $link-color;
     position: relative;
     top: 1px;