colorbutton: Use a css name

This was the sole widget to show up as 'widget' in
the css tree.

diff --git a/gtk/gtkcolorbutton.c b/gtk/gtkcolorbutton.c
index 9369e350c0cc297c3f0a92ea8789505d0c068b21..19759ff8e4d2d9c4e506d768eeba2bd6f7807ce1 100644 (file)
--- a/gtk/gtkcolorbutton.c
+++ b/gtk/gtkcolorbutton.c
@@ -229,6 +229,7 @@ gtk_color_button_class_init (GtkColorButtonClass *klass)
                                                          GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
 
   gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_BIN_LAYOUT);
+  gtk_widget_class_set_css_name (widget_class, "colorbutton");
 }
 
 static void