[gnome-themes-standard] column-headers: sync up new column headers styling for dark variation

[Cosimo Cecchi <cosimoc src gnome org>]

commit 7e6bf8b444309fff06ddec39fdd0237641bd3963
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Thu Aug 16 14:35:17 2012 +0200

    column-headers: sync up new column headers styling for dark variation

 .../Adwaita/gtk-3.0/gtk-widgets-borders-dark.css   |   25 ++++++++------------
 1 files changed, 10 insertions(+), 15 deletions(-)
---
diff --git a/themes/Adwaita/gtk-3.0/gtk-widgets-borders-dark.css b/themes/Adwaita/gtk-3.0/gtk-widgets-borders-dark.css
index 025bb95..7ab7dea 100644
--- a/themes/Adwaita/gtk-3.0/gtk-widgets-borders-dark.css
+++ b/themes/Adwaita/gtk-3.0/gtk-widgets-borders-dark.css
@@ -138,11 +138,11 @@ column-header.button:active,
 column-header .button:active,
 column-header.button:active:hover,
 column-header .button:active:hover {
-    border-image: linear-gradient(to bottom,
+    border-image: linear-gradient(to top,
                                   @borders,
                                   @theme_base_color
-                                  ) 0 1 0 0;
-    border-width: 0 1px 0 0;
+                                  ) 0 1 1 0;
+    border-width: 0 1px 1px 0;
     border-radius: 0;
     border-style: solid;
     border-color: transparent;
@@ -150,11 +150,8 @@ column-header .button:active:hover {
 
 column-header.button:backdrop,
 column-header .button:backdrop {
-    border-image: linear-gradient(to bottom,
-                                  @unfocused_borders,
-                                  @theme_unfocused_base_color
-                                  ) 0 1 0 0;
-    border-width: 0 1px 0 0;
+    border-image: none;
+    border-width: 0 1px 1px 0;
     border-radius: 0;
     border-style: solid;
     border-color: transparent;
@@ -162,11 +159,11 @@ column-header .button:backdrop {
 
 column-header.button:insensitive,
 column-header .button:insensitive {
-    border-image: linear-gradient(to bottom,
+    border-image: linear-gradient(to top,
                                   @borders,
                                   @insensitive_bg_color
-                                  ) 0 1 0 0;
-    border-width: 0 1px 0 0;
+                                  ) 0 1 1 0;
+    border-width: 0 1px 1px 0;
     border-radius: 0;
     border-style: solid;
     border-color: transparent;
@@ -179,10 +176,8 @@ column-header:last-child .button:active,
 column-header.button:last-child:active:hover,
 column-header:last-child .button:active:hover {
     border-image: none;
-    border-width: 0;
-    border-radius: 0;
-    border-style: solid;
-    border-color: transparent;
+    border-color: @borders;
+    border-right-width: 0;
 }
 
 /* unfocused window: generic element borders */