brighter grey for the navigation bar, hopefully solves the weird similarity to the header

core/css/styles.css

@@ -219,14 +219,14 @@ fieldset.warning legend { color:#b94a48 !important; }
 /* NAVIGATION ------------------------------------------------------------- */
 #navigation {
 	position:fixed; top:3.5em; float:left; width:64px; padding:0; z-index:75; height:100%;
-	background:#30343a url('../img/noise.png') repeat; border-right:1px #333 solid;
+	background:#383c43 url('../img/noise.png') repeat; border-right:1px #333 solid;
 	-moz-box-shadow:0 0 7px #000; -webkit-box-shadow:0 0 7px #000; box-shadow:0 0 7px #000;
 	overflow-x:scroll;
 }
 #navigation a {
 	display:block; padding:8px 0 4px;
 	text-decoration:none; font-size:10px; text-align:center;
-	color:#fff; text-shadow:#000 0 -1px 0; opacity:.4;
+	color:#fff; text-shadow:#000 0 -1px 0; opacity:.5;
 	white-space:nowrap; overflow:hidden; text-overflow:ellipsis; // ellipsize long app names
 }
 	#navigation a:hover, #navigation a:focus { opacity:.8; }