[Bugs] #4257 sugar-artwork UNSP: Toolbar overflow button: add a better looking arrow

[Sugar Labs Bugs]

#4257: Toolbar overflow button: add a better looking arrow
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    Reporter:  manuq                      |          Owner:  manuq      
        Type:  enhancement                |         Status:  new        
    Priority:  Unspecified by Maintainer  |      Milestone:  1.0        
   Component:  sugar-artwork              |        Version:  Unspecified
    Severity:  Unspecified                |       Keywords:             
Distribution:  Unspecified                |   Status_field:  Unconfirmed
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Comment(by manuq):

 Seems not possible in current GTK.  The overflow button is a private
 GtkToggleButton that has a GtkArrow inside:

 http://git.gnome.org/browse/gtk+/tree/gtk/gtktoolbar.c#n689

 The arrow can be styled, and we already did, because it has a name:

 {{{
 gtk_widget_set_name (priv->arrow, "gtk-toolbar-arrow");
 }}}

 In order to style the togglebutton, we should send a patch to gtk+.  We
 could then set a background-image to it.

 For now, at least we can improve a little bit making the arrow bigger:

 {{{
 .toolbar .button #gtk-toolbar-arrow {
     padding: 0 $(subcell_size + default_padding)px;
 +    -GtkArrow-arrow-scaling: 2.0;
 }
 }}}

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Ticket URL: <http://bugs.sugarlabs.org/ticket/4257#comment:1>
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