[gtk+] Adwaita: proper backdrop state for gtkcalendar header

[Lapo Calamandrei <lapo src gnome org>]

commit f2972f13ddf58312714d3eca6d54f4f4c85ac879
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Wed Jul 2 15:45:43 2014 +0200

    Adwaita: proper backdrop state for gtkcalendar header

 gtk/resources/theme/Adwaita/_common.scss           |    4 ++++
 gtk/resources/theme/Adwaita/gtk-contained-dark.css |    3 +++
 gtk/resources/theme/Adwaita/gtk-contained.css      |    3 +++
 3 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/gtk/resources/theme/Adwaita/_common.scss b/gtk/resources/theme/Adwaita/_common.scss
index 1fcf878..4c46853 100644
--- a/gtk/resources/theme/Adwaita/_common.scss
+++ b/gtk/resources/theme/Adwaita/_common.scss
@@ -1770,6 +1770,10 @@ GtkCalendar {
                                 lighten($bg_color,2%),
                                 darken($bg_color,2%));
     border-bottom-color: mix($borders_color,$bg_color,50%);
+    &:backdrop { 
+      background-image: linear-gradient(to bottom, $backdrop_bg_color); 
+      border-bottom-color: mix($backdrop_borders_color,$backdrop_bg_color,50%);
+    }
   }
 }
 
diff --git a/gtk/resources/theme/Adwaita/gtk-contained-dark.css 
b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
index 68c4b63..e647124 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
@@ -2345,6 +2345,9 @@ GtkCalendar {
   GtkCalendar.header {
     background: linear-gradient(to bottom, #3e4444, #343a3a);
     border-bottom-color: #2a2f2f; }
+    GtkCalendar.header:backdrop {
+      background-image: linear-gradient(to bottom, #393f3f);
+      border-bottom-color: #2b3030; }
 
 /***********
  * Dialogs *
diff --git a/gtk/resources/theme/Adwaita/gtk-contained.css b/gtk/resources/theme/Adwaita/gtk-contained.css
index 86c8e8e..e1b1dce 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained.css
@@ -2343,6 +2343,9 @@ GtkCalendar {
   GtkCalendar.header {
     background: linear-gradient(to bottom, #f2f2f2, #e8e8e8);
     border-bottom-color: #c7c7c7; }
+    GtkCalendar.header:backdrop {
+      background-image: linear-gradient(to bottom, #ededed);
+      border-bottom-color: #cacaca; }
 
 /***********
  * Dialogs *