+#inspector-inspect-toolbutton {
+ list-style-image: url("chrome://browser/skin/devtools/inspect-button.png");
+ -moz-image-region: rect(0px 16px 16px 0px);
+}
+
+#inspector-inspect-toolbutton[checked],
+#inspector-inspect-toolbutton:hover {
+ -moz-image-region: rect(0px 32px 16px 16px);
+}
+