--- a/ui/gtk/container.h	Wed Feb 26 21:33:57 2025 +0100
+++ b/ui/gtk/container.h	Fri Feb 28 21:42:38 2025 +0100
@@ -36,6 +36,7 @@
 
 #include <cx/allocator.h>
 #include <cx/hash_map.h>
+#include <cx/list.h>
 
 #ifdef	__cplusplus
 extern "C" {
@@ -127,6 +128,7 @@
 typedef struct UiSplitPaneContainer {
     UiContainer container;
     GtkWidget *current_pane;
+    CxList *children;
     UiOrientation orientation;
     int pos;
     int max;