[gnome-themes-standard] Use the same color combo box arrow use for open icons of file chooser buttons

[Jakub Steiner <jimmac src gnome org>]

commit db9b27688e607497e521df34a7af051ee2b19dab
Author: Nikita Churaev <lamefun x0r gmail com>
Date:   Tue Jan 21 00:39:04 2014 +0400

    Use the same color combo box arrow use for open icons of file chooser buttons
    
    https://bugzilla.gnome.org/show_bug.cgi?id=722650

 themes/Adwaita/gtk-3.0/gtk-widgets.css |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/themes/Adwaita/gtk-3.0/gtk-widgets.css b/themes/Adwaita/gtk-3.0/gtk-widgets.css
index d50233d..7d3df82 100644
--- a/themes/Adwaita/gtk-3.0/gtk-widgets.css
+++ b/themes/Adwaita/gtk-3.0/gtk-widgets.css
@@ -2151,6 +2151,10 @@ GtkFontButton GtkLabel:last-child {
     color: mix(@theme_fg_color, @theme_bg_color, 0.35);
 }
 
+GtkFileChooserButton GtkImage:last-child {
+    color: @internal_element_color;
+}
+
 /**************
  * Scrollbars *
  **************/