[gtk+] Adwaita: make tab buttons square once again

[Lapo Calamandrei <lapo src gnome org>]

commit 7c799bbc6591a58cec3ac4d9e0b4cb88fa4d1cfb
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Tue Feb 16 17:54:31 2016 +0100

    Adwaita: make tab buttons square once again

 gtk/theme/Adwaita/_common.scss           |    4 ++--
 gtk/theme/Adwaita/gtk-contained-dark.css |    4 ++--
 gtk/theme/Adwaita/gtk-contained.css      |    4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index e00e4ce..dc8e483 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -1981,8 +1981,8 @@ notebook {
         &, &:backdrop { color: gtkalpha(currentColor, 0.3); }
 
         padding: 0;
-        margin-top: 4px;
-        margin-bottom: 4px;
+        margin-top: 7px;
+        margin-bottom: 7px;
         // FIXME: generalize .small-button?
         min-width: 20px;
         min-height: 20px;
diff --git a/gtk/theme/Adwaita/gtk-contained-dark.css b/gtk/theme/Adwaita/gtk-contained-dark.css
index 6ab127e..a9d177a 100644
--- a/gtk/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/theme/Adwaita/gtk-contained-dark.css
@@ -2269,8 +2269,8 @@ notebook > header {
     notebook > header tab .titlebar button.titlebutton,
     .titlebar notebook > header tab button.titlebutton {
       padding: 0;
-      margin-top: 4px;
-      margin-bottom: 4px;
+      margin-top: 7px;
+      margin-bottom: 7px;
       min-width: 20px;
       min-height: 20px; }
       notebook > header tab button.flat:hover, notebook > header tab notebook > header > tabs > arrow:hover, 
notebook > header tab button.sidebar-button:hover, notebook > header tab headerbar button.titlebutton:hover, 
headerbar notebook > header tab button.titlebutton:hover,
diff --git a/gtk/theme/Adwaita/gtk-contained.css b/gtk/theme/Adwaita/gtk-contained.css
index 864bf53..2f4e76b 100644
--- a/gtk/theme/Adwaita/gtk-contained.css
+++ b/gtk/theme/Adwaita/gtk-contained.css
@@ -2279,8 +2279,8 @@ notebook > header {
     notebook > header tab .titlebar button.titlebutton,
     .titlebar notebook > header tab button.titlebutton {
       padding: 0;
-      margin-top: 4px;
-      margin-bottom: 4px;
+      margin-top: 7px;
+      margin-bottom: 7px;
       min-width: 20px;
       min-height: 20px; }
       notebook > header tab button.flat:hover, notebook > header tab notebook > header > tabs > arrow:hover, 
notebook > header tab button.sidebar-button:hover, notebook > header tab headerbar button.titlebutton:hover, 
headerbar notebook > header tab button.titlebutton:hover,