diff -r 000000000000 -r 6474c204b198 browser/themes/shared/devtools/common.css
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/themes/shared/devtools/common.css	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,228 @@
+%if 0
+/* 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/. */
+%endif
+
+:root {
+  font: message-box;
+}
+
+.devtools-monospace {
+%ifdef XP_MACOSX
+  font-family: Menlo, monospace;
+%elifdef XP_WIN
+  font-family: Consolas, monospace;
+%else
+  font-family: monospace;
+%endif
+%if defined(MOZ_WIDGET_GTK) || defined(MOZ_WIDGET_QT)
+  font-size: 80%;
+%endif
+}
+
+/* Splitters */
+.devtools-horizontal-splitter {
+  -moz-appearance: none;
+  background-image: none;
+  background-color: transparent;
+  border: 0;
+  border-bottom: 1px solid rgba(118, 121, 125, .5);
+  min-height: 3px;
+  height: 3px;
+  margin-top: -3px;
+  position: relative;
+}
+
+.devtools-side-splitter {
+  -moz-appearance: none;
+  background-image: none;
+  background-color: transparent;
+  border: 0;
+  -moz-border-end: 1px solid rgba(118, 121, 125, .5);
+  min-width: 3px;
+  width: 3px;
+  -moz-margin-start: -3px;
+  position: relative;
+  cursor: e-resize;
+}
+
+.devtools-toolbox-side-iframe {
+  min-width: 465px;
+}
+
+/* Autocomplete Popup */
+/* Dark and light theme */
+
+.devtools-autocomplete-popup {
+  -moz-appearance: none !important;
+  border: 1px solid hsl(210,11%,10%);
+  box-shadow: 0 1px 0 hsla(209,29%,72%,.25) inset;
+  background-color: transparent;
+  background-image: linear-gradient(to bottom, hsla(209,18%,18%,0.9), hsl(210,11%,16%));
+  border-radius: 3px;
+  overflow-x: hidden;
+%if defined(MOZ_WIDGET_GTK) || defined(MOZ_WIDGET_QT)
+  max-height: 32rem;
+%else
+  max-height: 40rem;
+%endif
+}
+
+.devtools-autocomplete-listbox {
+  -moz-appearance: none !important;
+  background-color: transparent;
+  border-width: 0px !important;
+}
+
+.devtools-autocomplete-listbox > richlistitem,
+.devtools-autocomplete-listbox > richlistitem[selected] {
+  width: 100%;
+  background-color: transparent;
+  border-radius: 4px;
+}
+
+.devtools-autocomplete-listbox.dark-theme > richlistitem[selected],
+.devtools-autocomplete-listbox.dark-theme > richlistitem:hover {
+  background-color: rgba(0,0,0,0.5);
+}
+
+.devtools-autocomplete-listbox.dark-theme > richlistitem[selected] > .autocomplete-value,
+.devtools-autocomplete-listbox:focus.dark-theme > richlistitem[selected] > .initial-value {
+  color: hsl(208,100%,60%);
+}
+
+.devtools-autocomplete-listbox.dark-theme > richlistitem[selected] > label {
+  color: #eee;
+}
+
+.devtools-autocomplete-listbox.dark-theme > richlistitem > label {
+  color: #ccc;
+}
+
+.devtools-autocomplete-listbox > richlistitem > .initial-value,
+.devtools-autocomplete-listbox > richlistitem > .autocomplete-value {
+  margin: 0;
+  padding: 1px 0;
+}
+
+.devtools-autocomplete-listbox > richlistitem > .autocomplete-count {
+  text-align: right;
+}
+
+/* Rest of the light theme */
+
+.devtools-autocomplete-popup.light-theme {
+  border: 1px solid hsl(210,24%,90%);
+  box-shadow: 0 1px 0 hsla(209,29%,90%,.25) inset;
+  background-image: linear-gradient(to bottom, hsla(209,18%,100%,0.9), hsl(210,24%,95%));
+}
+
+.devtools-autocomplete-listbox.light-theme > richlistitem[selected],
+.devtools-autocomplete-listbox.light-theme > richlistitem:hover {
+  background-color: rgba(128,128,128,0.3);
+}
+
+.devtools-autocomplete-listbox.light-theme > richlistitem[selected] > .autocomplete-value,
+.devtools-autocomplete-listbox:focus.light-theme > richlistitem[selected] > .initial-value {
+  color: #222;
+}
+
+.devtools-autocomplete-listbox.light-theme > richlistitem > label {
+  color: #666;
+}
+
+/* Tooltip widget (see browser/devtools/shared/widgets/Tooltip.js) */
+
+.devtools-tooltip .panel-arrowcontent {
+  padding: 4px;
+}
+
+.devtools-tooltip .panel-arrowcontainer {
+  /* Reseting the transition used when panels are shown */
+  transition: none;
+  /* Panels slide up/down/left/right when they appear using a transform.
+  Since we want to remove the transition, we don't need to transform anymore
+  plus it can interfeer by causing mouseleave events on the underlying nodes */
+  transform: none;
+}
+
+.devtools-tooltip[clamped-dimensions] {
+  min-height: 100px;
+  max-height: 400px;
+  min-width: 100px;
+  max-width: 400px;
+}
+.devtools-tooltip[clamped-dimensions] .panel-arrowcontent {
+  overflow: hidden;
+}
+
+/* Tooltip: Simple Text */
+
+.devtools-tooltip-simple-text {
+  max-width: 400px;
+  margin: 0 -4px; /* Compensate for the .panel-arrowcontent padding. */
+  padding: 8px 12px;
+  white-space: pre-wrap;
+}
+
+.devtools-tooltip-simple-text:first-child {
+  margin-top: -4px;
+}
+
+.devtools-tooltip-simple-text:last-child {
+  margin-bottom: -4px;
+}
+
+/* Tooltip: Font Family Previewer Text */
+.devtools-tooltip-font-previewer-text {
+  max-width: 400px;
+  line-height: 1.5;
+  font-size: 150%;
+  text-align: center;
+}
+
+/* Tooltip: Alert Icon */
+
+.devtools-tooltip-alert-icon {
+  width: 32px;
+  height: 32px;
+  margin: 6px;
+  -moz-margin-end: 20px;
+}
+
+.devtools-tooltip-alert-icon {
+  list-style-image: url("chrome://global/skin/icons/warning-32.png");
+}
+
+/* Tooltip: Variables View */
+
+.devtools-tooltip-variables-view-box {
+  margin: -4px; /* Compensate for the .panel-arrowcontent padding. */
+}
+
+/* Tooltip: Tiles */
+
+.devtools-tooltip-tiles {
+  background-color: #eee;
+  background-image: linear-gradient(45deg, #ccc 25%, transparent 25%, transparent 75%, #ccc 75%, #ccc),
+    linear-gradient(45deg, #ccc 25%, transparent 25%, transparent 75%, #ccc 75%, #ccc);
+  background-size: 20px 20px;
+  background-position: 0 0, 10px 10px;
+}
+
+.devtools-tooltip-iframe {
+  border: none;
+  background: transparent;
+}
+
+/* Eyedropper Widget */
+
+.devtools-eyedropper-panel {
+  pointer-events: none;
+  -moz-appearance: none;
+  width: 156px;
+  height: 120px;
+  background-color: transparent;
+  border: none;
+}