[gnome-themes-standard] Widgets: add back erroneously delete unfocused_borders color definition.

[Lapo Calamandrei <lapo src gnome org>]

commit b648b6d49f8b840b7e27fa7c7e643c1c04bbbb01
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Sat Feb 18 18:59:09 2012 +0100

    Widgets: add back erroneously delete unfocused_borders color definition.

 themes/Adwaita/gtk-3.0/gtk-main.css |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/themes/Adwaita/gtk-3.0/gtk-main.css b/themes/Adwaita/gtk-3.0/gtk-main.css
index 9e339bb..f1e4d22 100644
--- a/themes/Adwaita/gtk-3.0/gtk-main.css
+++ b/themes/Adwaita/gtk-3.0/gtk-main.css
@@ -29,6 +29,7 @@
 @define-color theme_unfocused_selected_bg_color shade(@theme_unfocused_bg_color, 0.95);
 @define-color theme_unfocused_selected_fg_color @theme_fg_color;
 @define-color unfocused_button_background @theme_unfocused_bg_color;
+ define-color unfocused_borders @borders;
 @define-color unfocused_insensitive_borders mix(@theme_unfocused_bg_color, @unfocused_borders, 0.5);
 @define-color unfocused_insensitive_fg_color mix(@theme_unfocused_bg_color, @theme_unfocused_fg_color, 0.5);
 @define-color unfocused_insensitive_bg_color mix(@theme_unfocused_bg_color, @theme_unfocused_base_color, 0.5);