Index: wp-includes/functions.php
===================================================================
--- wp-includes/functions.php	(revision 22290)
+++ wp-includes/functions.php	(working copy)
@@ -2128,40 +2128,62 @@
 		}
 
 		.button {
-			font-family: sans-serif;
+			display: inline-block;
+			vertical-align: middle;
 			text-decoration: none;
-			font-size: 14px !important;
-			line-height: 16px;
-			padding: 6px 12px;
+			font-size: 12px;
+			line-height: 1.45em;
+			margin: 0;
+			padding: 3px 10px;
 			cursor: pointer;
-			border: 1px solid #bbb;
-			color: #464646;
-			-webkit-border-radius: 15px;
-			border-radius: 15px;
-			-moz-box-sizing: content-box;
-			-webkit-box-sizing: content-box;
-			box-sizing: content-box;
-			background-color: #f5f5f5;
-			background-image: -ms-linear-gradient(top, #ffffff, #f2f2f2);
-			background-image: -moz-linear-gradient(top, #ffffff, #f2f2f2);
-			background-image: -o-linear-gradient(top, #ffffff, #f2f2f2);
-			background-image: -webkit-gradient(linear, left top, left bottom, from(#ffffff), to(#f2f2f2));
-			background-image: -webkit-linear-gradient(top, #ffffff, #f2f2f2);
-			background-image: linear-gradient(top, #ffffff, #f2f2f2);
+			border-width: 1px;
+			border-style: solid;
+			-webkit-border-radius: 3px;
+			border-radius: 3px;
+			white-space: nowrap;
+			-webkit-box-sizing: border-box;
+			-moz-box-sizing:    border-box;
+			box-sizing:         border-box;
+			background: #f3f3f3;
+			background-image: -webkit-gradient(linear, left top, left bottom, from(#fefefe), to(#f4f4f4));
+			background-image: -webkit-linear-gradient(top, #fefefe, #f4f4f4);
+			background-image:    -moz-linear-gradient(top, #fefefe, #f4f4f4);
+			background-image:      -o-linear-gradient(top, #fefefe, #f4f4f4);
+			background-image:   linear-gradient(to bottom, #fefefe, #f4f4f4);
+			border-color: #bbb;
+		 	color: #333;
+			text-shadow: 0 1px 0 #fff;
 		}
 
-		.button:hover {
-			color: #000;
-			border-color: #666;
+		.button:hover,
+		.button:focus {
+			background: #f3f3f3;
+			background-image: -webkit-gradient(linear, left top, left bottom, from(#fff), to(#f3f3f3));
+			background-image: -webkit-linear-gradient(top, #fff, #f3f3f3);
+			background-image:    -moz-linear-gradient(top, #fff, #f3f3f3);
+			background-image:     -ms-linear-gradient(top, #fff, #f3f3f3);
+			background-image:      -o-linear-gradient(top, #fff, #f3f3f3);
+			background-image:   linear-gradient(to bottom, #fff, #f3f3f3);
+			border-color: #999;
+			color: #222;
+			-webkit-box-shadow: 1px 1px 1px rgba(0,0,0,.2);
+			box-shadow: 1px 1px 1px rgba(0,0,0,.2);
 		}
 
 		.button:active {
-			background-image: -ms-linear-gradient(top, #f2f2f2, #ffffff);
-			background-image: -moz-linear-gradient(top, #f2f2f2, #ffffff);
-			background-image: -o-linear-gradient(top, #f2f2f2, #ffffff);
-			background-image: -webkit-gradient(linear, left top, left bottom, from(#f2f2f2), to(#ffffff));
-			background-image: -webkit-linear-gradient(top, #f2f2f2, #ffffff);
-			background-image: linear-gradient(top, #f2f2f2, #ffffff);
+			outline: none;
+			background: #eee;
+			background-image: -webkit-gradient(linear, left top, left bottom, from(#f4f4f4), to(#fefefe));
+			background-image: -webkit-linear-gradient(top, #f4f4f4, #fefefe);
+			background-image:    -moz-linear-gradient(top, #f4f4f4, #fefefe);
+			background-image:     -ms-linear-gradient(top, #f4f4f4, #fefefe);
+			background-image:      -o-linear-gradient(top, #f4f4f4, #fefefe);
+			background-image:   linear-gradient(to bottom, #f4f4f4, #fefefe);
+			border-color: #999;
+			color: #333;
+			text-shadow: 0 -1px 0 #fff;
+			-webkit-box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
+		 	box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
 		}
 
 		<?php if ( 'rtl' == $text_direction ) : ?>
Index: wp-admin/css/install.css
===================================================================
--- wp-admin/css/install.css	(revision 22290)
+++ wp-admin/css/install.css	(working copy)
@@ -71,48 +71,6 @@
 	padding: 0;
 }
 
-.submit input,
-.button,
-.button-secondary {
-	font-family: sans-serif;
-	text-decoration: none;
-	font-size: 14px !important;
-	line-height: 16px;
-	padding: 6px 12px;
-	cursor: pointer;
-	border: 1px solid #bbb;
-	color: #464646;
-	-webkit-border-radius: 15px;
-	border-radius:         15px;
-	-webkit-box-sizing: content-box;
-	-moz-box-sizing:    content-box;
-	box-sizing:         content-box;
-	background: #f2f2f2;
-	background-image: -webkit-gradient(linear, left bottom, left top, from(#ededed), to(#fff));
-	background-image: -webkit-linear-gradient(bottom, #ededed, #fff);
-	background-image:    -moz-linear-gradient(bottom, #ededed, #fff);
-	background-image:      -o-linear-gradient(bottom, #ededed, #fff);
-	background-image: linear-gradient(to top, #ededed, #fff);
-}
-
-.button:hover,
-.button-secondary:hover,
-.submit input:hover {
-	color: #000;
-	border-color: #666;
-}
-
-.button:active,
-.submit input:active,
-.button-secondary:active {
-	background: #eee;
-	background-image: -webkit-gradient(linear, left top, left bottom, from(#ededed), to(#fff));
-	background-image: -webkit-linear-gradient(top, #ededed, #fff);
-	background-image:    -moz-linear-gradient(top, #ededed, #fff);
-	background-image:      -o-linear-gradient(top, #ededed, #fff);
-	background-image: linear-gradient(to bottom, #ededed, #fff);
-}
-
 textarea {
 	border: 1px solid #dfdfdf;
 	-webkit-border-radius: 3px;
Index: wp-admin/setup-config.php
===================================================================
--- wp-admin/setup-config.php	(revision 22290)
+++ wp-admin/setup-config.php	(working copy)
@@ -96,6 +96,7 @@
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <title><?php _e( 'WordPress &rsaquo; Setup Configuration File' ); ?></title>
 <link rel="stylesheet" href="css/install.css?ver=<?php echo preg_replace( '/[^0-9a-z\.-]/i', '', $wp_version ); ?>" type="text/css" />
+<link rel="stylesheet" href="../wp-includes/css/buttons.css?ver=<?php echo preg_replace( '/[^0-9a-z\.-]/i', '', $wp_version ); ?>" type="text/css" />
 
 </head>
 <body<?php if ( is_rtl() ) echo ' class="rtl"'; ?>>