minor tweak to alert icons, tabs, other feedback from twitter

Author: addyosmani

css/custom-theme/images/ui-icons_f6cf3b_256x240.png

@@ -206,7 +206,7 @@ border: 1px solid #d3d3d3; background: #e6e6e6 url(images/ui-bg_glass_75_e6e6e6_
 .ui-state-hover .ui-icon, .ui-state-focus .ui-icon {background-image: url(images/ui-icons_454545_256x240.png); }
 .ui-state-active .ui-icon {background-image: url(images/ui-icons_454545_256x240.png); }
 .ui-state-highlight .ui-icon {background-image: url(images/ui-icons_2e83ff_256x240.png); }
-.ui-state-error .ui-icon, .ui-state-error-text .ui-icon {background-image: url(images/ui-icons_cd0a0a_256x240.png); }
+.ui-state-error .ui-icon, .ui-state-error-text .ui-icon {background-image: url(images/ui-icons_f6cf3b_256x240.png); }
 
 /* positioning */
 .ui-icon-carat-1-n { background-position: 0 0; }
@@ -821,10 +821,9 @@ opacity: 0.25;
 .ui-tabs { position: relative; padding: .2em; zoom: 1; border:0px;} /* position: relative prevents IE scroll bug (element with position: relative inside container with overflow: auto appear as "fixed") */
 .ui-tabs .ui-tabs-nav li:hover{
   text-decoration: none;
-  background-color: #eee;
-  border-radius:4px 4px 0 0;
-
 }
+
+
 .ui-tabs .ui-tabs-nav { margin: 0; padding: .2em .2em 0; border-bottom:1px solid #DDD; }
 .ui-tabs .ui-tabs-nav li { list-style: none; float: left; position: relative; top: 1px;   padding: 0; white-space: nowrap; background:none; border:0px;
 

css/custom-theme/jquery-ui-1.8.16.custom.css

@@ -259,6 +259,9 @@ text-indent:-9999px;
 width:98%;
 margin:1px 0;
 padding:0;
+background:gray;
+border:0px;
+
 }
 
 .wijmo-wijmenu .wijmo-wijmenu-group {