[gtk+] Adwaita: spinbutton button inhert in backdrop

[Lapo Calamandrei <lapo src gnome org>]

commit 05ec121f3e837d0f48f4b45a75a179fc6ae31ed0
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Tue Jul 8 16:54:00 2014 +0200

    Adwaita: spinbutton button inhert in backdrop

 gtk/resources/theme/Adwaita/_common.scss           |    1 +
 gtk/resources/theme/Adwaita/gtk-contained-dark.css |    3 ++-
 gtk/resources/theme/Adwaita/gtk-contained.css      |    3 ++-
 3 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/gtk/resources/theme/Adwaita/_common.scss b/gtk/resources/theme/Adwaita/_common.scss
index a189ce2..4bc007a 100644
--- a/gtk/resources/theme/Adwaita/_common.scss
+++ b/gtk/resources/theme/Adwaita/_common.scss
@@ -497,6 +497,7 @@ GtkColorButton.button { padding: 4px; } // Uniform padding on the
     }
     &:backdrop {
       border-color: transparentize($backdrop_borders_color,0.7);
+      background-color: transparent;
     }
     &:backdrop:insensitive {
       background-image: none;
diff --git a/gtk/resources/theme/Adwaita/gtk-contained-dark.css 
b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
index f66fb0c..7f56eb2 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
@@ -640,7 +640,8 @@ GtkColorButton.button {
       box-shadow: inset 0 2px 3px -1px rgba(0, 0, 0, 0.2);
       background-color: rgba(0, 0, 0, 0.1); }
     .spinbutton .button:backdrop {
-      border-color: rgba(30, 34, 34, 0.3); }
+      border-color: rgba(30, 34, 34, 0.3);
+      background-color: transparent; }
     .spinbutton .button:backdrop:insensitive {
       background-image: none;
       color: rgba(69, 76, 76, 0.3);
diff --git a/gtk/resources/theme/Adwaita/gtk-contained.css b/gtk/resources/theme/Adwaita/gtk-contained.css
index 0b8042c..c6a0fcb 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained.css
@@ -632,7 +632,8 @@ GtkColorButton.button {
       box-shadow: inset 0 2px 3px -1px rgba(0, 0, 0, 0.2);
       background-color: rgba(0, 0, 0, 0.1); }
     .spinbutton .button:backdrop {
-      border-color: rgba(168, 168, 168, 0.3); }
+      border-color: rgba(168, 168, 168, 0.3);
+      background-color: transparent; }
     .spinbutton .button:backdrop:insensitive {
       background-image: none;
       color: rgba(199, 199, 199, 0.3);