[gtk+] Adwaita: Set background color of header buttons

[Matthias Clasen <matthiasc src gnome org>]

commit c3b20e3d11481d5b9c7cc32ba323d1b543c47513
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jul 10 19:36:26 2014 -0400

    Adwaita: Set background color of header buttons
    
    Without a background, one can see titles shine through when
    resizable columns are squeezed.

 gtk/resources/theme/Adwaita/_common.scss           |    1 +
 gtk/resources/theme/Adwaita/gtk-contained-dark.css |    1 +
 gtk/resources/theme/Adwaita/gtk-contained.css      |    1 +
 3 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gtk/resources/theme/Adwaita/_common.scss b/gtk/resources/theme/Adwaita/_common.scss
index 8330ab6..09a1c70 100644
--- a/gtk/resources/theme/Adwaita/_common.scss
+++ b/gtk/resources/theme/Adwaita/_common.scss
@@ -868,6 +868,7 @@ column-header {
     @extend %column_header_button;
     $_column_header_color: mix($fg_color,$base_color,50%);
     color: $_column_header_color;
+    background-color: $base_color;
     font-weight: bold;
     text-shadow: none;
     box-shadow: none;
diff --git a/gtk/resources/theme/Adwaita/gtk-contained-dark.css 
b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
index 2646c77..93ac0f0 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained-dark.css
@@ -1051,6 +1051,7 @@ GtkTreeView.view {
 
 column-header .button {
   color: #8b8b8a;
+  background-color: #292929;
   font-weight: bold;
   text-shadow: none;
   box-shadow: none; }
diff --git a/gtk/resources/theme/Adwaita/gtk-contained.css b/gtk/resources/theme/Adwaita/gtk-contained.css
index 69d576e..17b56b1 100644
--- a/gtk/resources/theme/Adwaita/gtk-contained.css
+++ b/gtk/resources/theme/Adwaita/gtk-contained.css
@@ -1043,6 +1043,7 @@ GtkTreeView.view {
 
 column-header .button {
   color: #96999a;
+  background-color: white;
   font-weight: bold;
   text-shadow: none;
   box-shadow: none; }