[gtk+] Adwaita: Update separator styling

[Matthias Clasen <matthiasc src gnome org>]

commit 20e1ff44e8d7142ac2b7bec70e38078505cd0150
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Dec 14 15:56:56 2015 -0500

    Adwaita: Update separator styling
    
    Separators no longer draw a line with the foreground color,
    but instead just draw background.

 gtk/theme/Adwaita/_common.scss           |    4 +++-
 gtk/theme/Adwaita/gtk-contained-dark.css |    4 +++-
 gtk/theme/Adwaita/gtk-contained.css      |    4 +++-
 3 files changed, 9 insertions(+), 3 deletions(-)
---
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index 59c452d..8de9e9c 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -2553,7 +2553,9 @@ scrolledwindow {
 separator {
   // always disable separators
   // -GtkWidget-wide-separators: true;
-  color: transparentize(black, 0.9);
+  background: transparentize(black, 0.9);
+  min-width: 1px;
+  min-height: 1px;
 
   // Font and File button separators
   button.file &.vertical,
diff --git a/gtk/theme/Adwaita/gtk-contained-dark.css b/gtk/theme/Adwaita/gtk-contained-dark.css
index 7414d8c..52ce6be 100644
--- a/gtk/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/theme/Adwaita/gtk-contained-dark.css
@@ -3625,7 +3625,9 @@ scrolledwindow junction {
     background-color: #323737; }
 
 separator {
-  color: rgba(0, 0, 0, 0.1); }
+  background: rgba(0, 0, 0, 0.1);
+  min-width: 1px;
+  min-height: 1px; }
   button.file separator.vertical, button.font separator.vertical {
     -GtkWidget-wide-separators: true; }
 
diff --git a/gtk/theme/Adwaita/gtk-contained.css b/gtk/theme/Adwaita/gtk-contained.css
index 28b9589..ef83a14 100644
--- a/gtk/theme/Adwaita/gtk-contained.css
+++ b/gtk/theme/Adwaita/gtk-contained.css
@@ -3787,7 +3787,9 @@ scrolledwindow junction {
     background-color: #e1e1df; }
 
 separator {
-  color: rgba(0, 0, 0, 0.1); }
+  background: rgba(0, 0, 0, 0.1);
+  min-width: 1px;
+  min-height: 1px; }
   button.file separator.vertical, button.font separator.vertical {
     -GtkWidget-wide-separators: true; }