diff -r b34bd1557c6c -r 77254bd6dccb ui/gtk/display.c
--- a/ui/gtk/display.c	Sat Apr 05 17:57:04 2025 +0200
+++ b/ui/gtk/display.c	Sun Jul 20 22:04:39 2025 +0200
@@ -46,19 +46,19 @@
 #endif
 }
 
-UIWIDGET ui_label_create(UiObject *obj, UiLabelArgs args) {
+UIWIDGET ui_label_create(UiObject *obj, UiLabelArgs *args) {
     UiObject* current = uic_current_obj(obj);
     
     const char *css_class = NULL;
     char *markup = NULL;
-    if(args.label) {
+    if(args->label) {
         #if GTK_MAJOR_VERSION < 3
-            switch(args.style) {
+            switch(args->style) {
                 case UI_LABEL_STYLE_DEFAULT: break;
                 case UI_LABEL_STYLE_TITLE: {
-                    cxmutstr m = cx_asprintf("<b>%s</b>", args.label);
+                    cxmutstr m = cx_asprintf("<b>%s</b>", args->label);
                     markup = m.ptr;
-                    args.label = NULL;
+                    args->label = NULL;
                 }
                 case UI_LABEL_STYLE_SUBTITLE: {
                     break;
@@ -68,7 +68,7 @@
                 }
             }
 #       else
-            switch(args.style) {
+            switch(args->style) {
                 case UI_LABEL_STYLE_DEFAULT: break;
                 case UI_LABEL_STYLE_TITLE: {
                     css_class = "ui_label_title";
@@ -87,7 +87,7 @@
     }
 
     
-    GtkWidget *widget = gtk_label_new(args.label);
+    GtkWidget *widget = gtk_label_new(args->label);
     if(markup) {
         gtk_label_set_markup(GTK_LABEL(widget), markup);
         free(markup);
@@ -97,7 +97,7 @@
         WIDGET_ADD_CSS_CLASS(widget, css_class);
     }
     
-    switch(args.align) {
+    switch(args->align) {
         case UI_ALIGN_DEFAULT: break;
         case UI_ALIGN_LEFT: set_alignment(widget, 0, .5); break;
         case UI_ALIGN_RIGHT: set_alignment(widget, 1, .5); break;
@@ -105,7 +105,7 @@
     }
     
 
-    UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.value, args.varname, UI_VAR_STRING);
+    UiVar* var = uic_widget_var(obj->ctx, current->ctx, args->value, args->varname, UI_VAR_STRING);
     if(var) {
         UiString* value = (UiString*)var->value;
         value->obj = widget;
@@ -113,19 +113,19 @@
         value->set = ui_label_set;
     }
     
-    UI_APPLY_LAYOUT1(current, args);
-    current->container->add(current->container, widget, FALSE);
+    UI_APPLY_LAYOUT2(current, args);
+    current->container->add(current->container, widget);
     
     return widget;
 }
 
-UIWIDGET ui_llabel_create(UiObject* obj, UiLabelArgs args) {
-    args.align = UI_ALIGN_LEFT;
+UIWIDGET ui_llabel_create(UiObject* obj, UiLabelArgs *args) {
+    args->align = UI_ALIGN_LEFT;
     return ui_label_create(obj, args);
 }
 
-UIWIDGET ui_rlabel_create(UiObject* obj, UiLabelArgs args) {
-    args.align = UI_ALIGN_RIGHT;
+UIWIDGET ui_rlabel_create(UiObject* obj, UiLabelArgs *args) {
+    args->align = UI_ALIGN_RIGHT;
     return ui_label_create(obj, args);
 }
 
@@ -150,7 +150,7 @@
 UIWIDGET ui_space_deprecated(UiObject *obj) {
     GtkWidget *widget = gtk_label_new("");
     UiContainer *ct = uic_get_current_container(obj);
-    ct->add(ct, widget, TRUE);
+    ct->add(ct, widget);
     
     return widget;
 }
@@ -162,7 +162,7 @@
     GtkWidget *widget = gtk_hseparator_new();
 #endif
     UiContainer *ct = uic_get_current_container(obj);
-    ct->add(ct, widget, FALSE);
+    ct->add(ct, widget);
     
     return widget;
 }
@@ -174,14 +174,14 @@
     double max;
 } UiProgressBarRange;
 
-UIWIDGET ui_progressbar_create(UiObject *obj, UiProgressbarArgs args) {
+UIWIDGET ui_progressbar_create(UiObject *obj, UiProgressbarArgs *args) {
     UiObject* current = uic_current_obj(obj);
     
     GtkWidget *progressbar = gtk_progress_bar_new();
-    if(args.max > args.min) {
+    if(args->max > args->min) {
         UiProgressBarRange *range = malloc(sizeof(UiProgressBarRange));
-        range->min = args.min;
-        range->max = args.max;
+        range->min = args->min;
+        range->max = args->max;
         g_signal_connect(
                 progressbar,
                 "destroy",
@@ -191,7 +191,7 @@
     }
     
     
-    UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.value, args.varname, UI_VAR_DOUBLE);
+    UiVar* var = uic_widget_var(obj->ctx, current->ctx, args->value, args->varname, UI_VAR_DOUBLE);
     if(var && var->value) {
         UiDouble *value = var->value;
         value->get = ui_progressbar_get;
@@ -200,8 +200,8 @@
         ui_progressbar_set(value, value->value);
     }
     
-    UI_APPLY_LAYOUT1(current, args);
-    current->container->add(current->container, progressbar, FALSE);
+    UI_APPLY_LAYOUT2(current, args);
+    current->container->add(current->container, progressbar);
     
     return progressbar;
 }
@@ -228,12 +228,12 @@
 
 /* ------------------------- progress spinner ------------------------- */
 
-UIWIDGET ui_progressspinner_create(UiObject* obj, UiProgressbarSpinnerArgs args) {
+UIWIDGET ui_progressspinner_create(UiObject* obj, UiProgressbarSpinnerArgs *args) {
     UiObject* current = uic_current_obj(obj);
     
     GtkWidget *spinner = gtk_spinner_new();
     
-    UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.value, args.varname, UI_VAR_INTEGER);
+    UiVar* var = uic_widget_var(obj->ctx, current->ctx, args->value, args->varname, UI_VAR_INTEGER);
     if(var && var->value) {
         UiInteger *value = var->value;
         value->get = ui_spinner_get;
@@ -242,8 +242,8 @@
         ui_spinner_set(value, value->value);
     }
     
-    UI_APPLY_LAYOUT1(current, args);
-    current->container->add(current->container, spinner, FALSE);
+    UI_APPLY_LAYOUT2(current, args);
+    current->container->add(current->container, spinner);
     
     return spinner;
 }