1 files changed, 11 insertions, 0 deletions
diff --git a/src/core/workspace.h b/src/core/workspace.h
index 7d02861e..b8ea3c97 100644
--- a/src/core/workspace.h
+++ b/src/core/workspace.h
@@ -52,6 +52,17 @@ struct _MetaWorkspace
   MetaScreen *screen;
 
   GList *windows;
+  
+  /* The "MRU list", or "most recently used" list, is a list of
+   * MetaWindows ordered based on the time the the user interacted
+   * with the window most recently.
+   *
+   * For historical reasons, we keep an MRU list per workspace.
+   * It used to be used to calculate the default focused window,
+   * but isn't anymore, as the window next in the stacking order
+  * can sometimes be not the window the user interacted with last,
+  */
+
   GList *mru_list;
 
   GList  *list_containing_self;