+@media (min-resolution: 2dppx) {
+ #details-pane-toggle {
+ list-style-image: url("chrome://browser/skin/devtools/debugger-collapse@2x.png");
+ -moz-image-region: rect(0px,32px,32px,0px);
+ }
+
+ #details-pane-toggle[pane-collapsed] {
+ list-style-image: url("chrome://browser/skin/devtools/debugger-expand@2x.png");
+ }
+
+ #details-pane-toggle:active {
+ -moz-image-region: rect(0px,64px,32px,32px);
+ }
+}
+