increase default window size

src/GnomeScreensaver.cc

@@ -94,7 +94,7 @@ GnomeScreensaver::GnomeScreensaver(int *argc, char ***argv,
     if ((geometry == NULL)
         || !gtk_window_parse_geometry (GTK_WINDOW (window), geometry))
     {
-        gtk_window_set_default_size (GTK_WINDOW (window), 800, 600);
+        gtk_window_set_default_size (GTK_WINDOW (window), 1200, 900);
     }
 
     gtk_widget_show (window);