T11: the Workspace key context sits above the focus root, so the column toggles work after a press on a blank column or a header

src/workspace.rs

@@ -118,8 +118,7 @@ impl Render for Workspace {
         if settings.show_panel {
             shell = shell.column(ShellColumn::new("panel").width(width));
         }
-        ResizeBorder::new().child(
+        // The context sits above the focus root, so its keys work wherever focus is.
-            FocusScope::new(&self.focus).root().size_full().child(
         div()
             .size_full()
             .key_context(CONTEXT)
@@ -132,8 +131,9 @@ impl Render for Workspace {
             .on_action(cx.listener(|this, _: &TogglePanel, _, cx| {
                 this.toggle(|settings| settings.show_panel = !settings.show_panel, cx)
             }))
-                    .child(shell),
+            .child(
-            ),
+                ResizeBorder::new()
+                    .child(FocusScope::new(&self.focus).root().size_full().child(shell)),
             )
     }
 }