diff -r 000000000000 -r 6474c204b198 toolkit/themes/windows/global/inContentUI.css
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/themes/windows/global/inContentUI.css	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,154 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * The default namespace for this file is XUL. Be sure to prefix rules that
+ * are applicable to both XUL and HTML with '*|'.
+ */
+@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul");
+@namespace html url("http://www.w3.org/1999/xhtml");
+
+/* Page background */
+*|*:root {
+  -moz-appearance: none;
+  padding: 18px;
+  background-repeat: repeat;
+  color: -moz-dialogText;
+  background-color: -moz-dialog;
+  background-image: /* Texture */
+                    url("chrome://global/skin/inContentUI/background-texture.png");
+}
+
+html|html {
+  font: message-box;
+}
+
+%ifdef WINDOWS_AERO
+@media (-moz-windows-default-theme) and (-moz-os-version: windows-vista),
+       (-moz-windows-default-theme) and (-moz-os-version: windows-win7) {
+  *|*:root {
+    color: #000;
+    background-color: #CCD9EA;
+  }
+}
+
+@media (-moz-windows-glass) {
+  *|*:root {
+    /* Blame shorlander for this monstrosity. */
+    background-image: /* Side gradients */
+                      linear-gradient(to right,
+                                      rgba(255,255,255,0.2), rgba(255,255,255,0) 40%,
+                                      rgba(255,255,255,0) 60%, rgba(255,255,255,0.2)),
+                      /* Aero-style light beams */
+                      -moz-linear-gradient(left 32deg,
+                                           /* First light beam */
+                                           rgba(255,255,255,0) 19.5%, rgba(255,255,255,0.1) 20%,
+                                           rgba(255,255,255,0.1) 21.5%, rgba(255,255,255,0.2) 22%,
+                                           rgba(255,255,255,0.2) 25.5%, rgba(255,255,255,0.1) 26%,
+                                           rgba(255,255,255,0.1) 27.5%, rgba(255,255,255,0) 28%,
+                                           /* Second light beam */
+                                           rgba(255,255,255,0) 49.5%, rgba(255,255,255,0.1) 50%,
+                                           rgba(255,255,255,0.1) 52.5%, rgba(255,255,255,0.2) 53%,
+                                           rgba(255,255,255,0.2) 54.5%, rgba(255,255,255,0.1) 55%,
+                                           rgba(255,255,255,0.1) 57.5%, rgba(255,255,255,0) 58%,
+                                           /* Third light beam */
+                                           rgba(255,255,255,0) 87%, rgba(255,255,255,0.2) 90%),
+                      /* Texture */
+                      url("chrome://global/skin/inContentUI/background-texture.png");
+  }
+}
+%endif
+
+/* Content */
+*|*.main-content {
+  /* Needed to allow the radius to clip the inner content, see bug 595656 */
+  overflow: hidden;
+  background-color: rgba(255, 255, 255, 0.35);
+  background-image: linear-gradient(rgba(255, 255, 255, 0),
+                                    rgba(255, 255, 255, 0.75));
+  border: 1px solid #C3CEDF;
+}
+
+%ifdef WINDOWS_AERO
+@media (-moz-os-version: windows-vista),
+       (-moz-os-version: windows-win7) {
+%endif
+  *|*.main-content {
+    border-radius: 5px;
+  }
+%ifdef WINDOWS_AERO
+}
+
+@media (-moz-windows-glass) {
+  /* Buttons */
+  *|button,
+  menulist,
+  colorpicker[type="button"] {
+    -moz-appearance: none;
+    color: black;
+    padding: 0 5px;
+    background: linear-gradient(rgba(251, 252, 253, 0.95), rgba(246, 247, 248, 0) 49%, 
+                                rgba(211, 212, 213, 0.45) 51%, rgba(225, 226, 229, 0.3));
+    background-clip: padding-box;
+    border-radius: 3px;
+    border: 1px solid rgba(31, 64, 100, 0.4);
+    border-top-color: rgba(31, 64, 100, 0.3);
+    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.25) inset,
+                0 0 2px 1px rgba(255, 255, 255, 0.25) inset;
+  }
+
+  menulist {
+    -moz-padding-end: 0;
+  }
+
+  colorpicker[type="button"]:-moz-focusring:not([open="true"]) > .colorpicker-button-colorbox {
+    outline: 1px dotted ThreeDDarkShadow;
+  }
+
+  html|button[disabled],
+  button[disabled="true"],
+  menulist[disabled="true"],
+  colorpicker[type="button"][disabled="true"] {
+    -moz-border-top-colors: rgba(31, 64, 100, 0.3) !important;
+    -moz-border-right-colors: rgba(31, 64, 100, 0.4) !important;
+    -moz-border-bottom-colors: rgba(31, 64, 100, 0.4) !important;
+    -moz-border-left-colors: rgba(31, 64, 100, 0.4) !important;
+    opacity: 0.8;
+    color: #505050;
+  }
+
+  html|button:not([disabled]):active:hover,
+  button:not([disabled="true"]):active:hover,
+  menulist[open="true"]:not([disabled="true"]),
+  colorpicker[type="button"][open="true"]:not([disabled="true"]) {
+    background-color: rgba(61, 76, 92, 0.2);
+    border-color: rgba(39, 53, 68, 0.5);
+    box-shadow: 0 0 3px 1px rgba(39, 53, 68, 0.2) inset;
+  }
+
+  button > .button-box {
+    padding: 1px !important;
+  }
+
+  spinbuttons > .spinbuttons-box > .spinbuttons-button {
+    border-radius: 0;
+    padding: 0 4px;
+  }
+
+  spinbuttons > .spinbuttons-box > .spinbuttons-up {
+    list-style-image: url("chrome://global/skin/arrow/arrow-up.gif");
+    border-bottom-width: 0;
+  }
+
+  spinbuttons > .spinbuttons-box > .spinbuttons-down {
+    list-style-image: url("chrome://global/skin/arrow/arrow-dn.gif");
+  }
+}
+%endif
+
+colorpicker[type="button"] {
+  margin: 1px 5px 2px 5px;
+  padding: 3px;
+  height: 25px;
+}