widget-factory: use new icon instead of gtk logo

demos/widget-factory/Makefile.am

@@ -60,7 +60,6 @@ uninstall-update-icon-cache:
 
 EXTRA_DIST += \
 	widget-factory.ui \
-	widget-factory.gresource.xml \
-	gtk-logo-256.png
+	widget-factory.gresource.xml
 
 -include $(top_srcdir)/git.mk

demos/widget-factory/widget-factory.c

@@ -56,15 +56,12 @@ activate_about (GSimpleAction *action,
                 gpointer       user_data)
 {
   GtkWidget *window = user_data;
-  GdkPixbuf *pixbuf;
   const gchar *authors[] = {
     "Andrea Cimitan",
     "Cosimo Cecchi",
     NULL
   };
 
-  pixbuf = gdk_pixbuf_new_from_resource ("/logos/gtk-logo-256.png", NULL);
-
   gtk_show_about_dialog (GTK_WINDOW (window),
                          "program-name", "GTK+ Widget Factory",
                          "version", g_strdup_printf ("%s,\nRunning against GTK+ %d.%d.%d",
@@ -77,11 +74,9 @@ activate_about (GSimpleAction *action,
                          "website", "http://www.gtk.org",
                          "comments", "Program to demonstrate GTK+ themes and widgets",
                          "authors", authors,
-                         "logo", pixbuf,
+                         "logo-icon-name", "gtk3-widget-factory",
                          "title", "About GTK+ Widget Factory",
                          NULL);
-
-  g_object_unref (pixbuf);
 }
 
 static void

demos/widget-factory/widget-factory.gresource.xml

@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <gresources>
-  <gresource prefix="/logos">
-    <file>gtk-logo-256.png</file>
-  </gresource>
   <gresource prefix="/ui">
     <file preprocess="xml-stripblanks">widget-factory.ui</file>
   </gresource>

demos/widget-factory/widget-factory.ui

@@ -1883,7 +1883,7 @@ Suspendisse feugiat quam quis dolor accumsan cursus. </property>
                             <child>
                               <object class="GtkImage" id="imageo">
                                 <property name="visible">True</property>
-                                <property name="resource">/logos/gtk-logo-256.png</property>
+                                <property name="icon-name">gtk3-widget-factory</property>
                               </object>
                               <packing>
                                 <property name="name">page2</property>