.title {
  background-image: url("chrome://browser/skin/session-restore.svg");
}

treechildren::-moz-tree-image(icon),
treechildren::-moz-tree-image(noicon) {
  padding-right: 2px;
  margin: 0 2px;
  width: 16px;
  height: 16px;
}

treechildren::-moz-tree-image(noicon) {
  list-style-image: url("chrome://mozapps/skin/places/defaultFavicon.png");
}
treechildren::-moz-tree-image(container, noicon) {
  list-style-image: url("chrome://browser/skin/aboutSessionRestore-window-icon.png");
}

treechildren::-moz-tree-image(checked) {
  list-style-image: url("chrome://global/skin/in-content/check.svg#check");
}
treechildren::-moz-tree-image(checked, selected) {
  list-style-image: url("chrome://global/skin/in-content/check.svg#check-inverted");
}

treechildren::-moz-tree-image(partial) {
  list-style-image: url("chrome://global/skin/in-content/check-partial.svg#check-partial");
}
treechildren::-moz-tree-image(partial, selected) {
  list-style-image: url("chrome://global/skin/in-content/check-partial.svg#check-partial-inverted");
}