[gtk+] Adwaita: Update expander styling

[Matthias Clasen <matthiasc src gnome org>]

commit c63c932a0572e18611f9cbb0b98c3ca5388dddf5
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Nov 7 00:42:37 2015 -0500

    Adwaita: Update expander styling
    
    Adapt to the changes in the previous commit.

 gtk/theme/Adwaita/_common.scss           |   12 +++++++-----
 gtk/theme/Adwaita/gtk-contained-dark.css |    8 ++++----
 gtk/theme/Adwaita/gtk-contained.css      |    8 ++++----
 3 files changed, 15 insertions(+), 13 deletions(-)
---
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index 5766961..93a0477 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -2717,11 +2717,13 @@ row {
  * Expanders *
  *************/
 
-.expander {
-  -gtk-icon-source: -gtk-icontheme('pan-end-symbolic');
-  &:dir(rtl) { -gtk-icon-source: -gtk-icontheme('pan-end-symbolic-rtl'); }
-  &:hover { color: lighten($fg_color,30%); } //only lightens the arrow
-  &:checked { -gtk-icon-source: -gtk-icontheme('pan-down-symbolic'); }
+expander {
+  arrow {
+    -gtk-icon-source: -gtk-icontheme('pan-end-symbolic');
+    &:dir(rtl) { -gtk-icon-source: -gtk-icontheme('pan-end-symbolic-rtl'); }
+    &:hover { color: lighten($fg_color,30%); } //only lightens the arrow
+    &:checked { -gtk-icon-source: -gtk-icontheme('pan-down-symbolic'); }
+  }
 }
 
 /************
diff --git a/gtk/theme/Adwaita/gtk-contained-dark.css b/gtk/theme/Adwaita/gtk-contained-dark.css
index d64a88c..5384c7f 100644
--- a/gtk/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/theme/Adwaita/gtk-contained-dark.css
@@ -3827,13 +3827,13 @@ row {
 /*************
  * Expanders *
  *************/
-.expander {
+expander arrow {
   -gtk-icon-source: -gtk-icontheme("pan-end-symbolic"); }
-  .expander:dir(rtl) {
+  expander arrow:dir(rtl) {
     -gtk-icon-source: -gtk-icontheme("pan-end-symbolic-rtl"); }
-  .expander:hover {
+  expander arrow:hover {
     color: white; }
-  .expander:checked {
+  expander arrow:checked {
     -gtk-icon-source: -gtk-icontheme("pan-down-symbolic"); }
 
 /************
diff --git a/gtk/theme/Adwaita/gtk-contained.css b/gtk/theme/Adwaita/gtk-contained.css
index a088a1c..645dedc 100644
--- a/gtk/theme/Adwaita/gtk-contained.css
+++ b/gtk/theme/Adwaita/gtk-contained.css
@@ -3997,13 +3997,13 @@ row {
 /*************
  * Expanders *
  *************/
-.expander {
+expander arrow {
   -gtk-icon-source: -gtk-icontheme("pan-end-symbolic"); }
-  .expander:dir(rtl) {
+  expander arrow:dir(rtl) {
     -gtk-icon-source: -gtk-icontheme("pan-end-symbolic-rtl"); }
-  .expander:hover {
+  expander arrow:hover {
     color: #748489; }
-  .expander:checked {
+  expander arrow:checked {
     -gtk-icon-source: -gtk-icontheme("pan-down-symbolic"); }
 
 /************