+ /* layout is the layout of this container: one of split[v|h], stacked or
+ * tabbed. Special containers in the tree (above workspaces) have special
+ * layouts like dockarea or output.
+ *
+ * last_split_layout is one of splitv or splith to support the old "layout
+ * default" command which by now should be "layout splitv" or "layout
+ * splith" explicitly.
+ *
+ * workspace_layout is only for type == CT_WORKSPACE cons. When you change
+ * the layout of a workspace without any children, i3 cannot just set the
+ * layout (because workspaces need to be splitv/splith to allow focus
+ * parent and opening new containers). Instead, it stores the requested
+ * layout in workspace_layout and creates a new split container with that
+ * layout whenever a new container is attached to the workspace. */