[gnome-builder] prefs: update style for container name change

[Christian Hergert <chergert src gnome org>]

commit eb59159a2abdca2dd4ce6d96737e06e761311cbf
Author: Christian Hergert <christian hergert me>
Date:   Tue Nov 10 14:22:01 2015 -0800

    prefs: update style for container name change

 data/theme/shared.css |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/data/theme/shared.css b/data/theme/shared.css
index 3bba22e..e36eecd 100644
--- a/data/theme/shared.css
+++ b/data/theme/shared.css
@@ -196,7 +196,8 @@ workbench IdePreferencesPerspective IdePreferencesGroup row:last-child {
   border-bottom: none;
 }
 
-workbench IdePreferencesContainer entry {
-  background: none;
+workbench IdePreferencesBin entry {
+  background: transparent;
+  box-shadow: none;
   opacity: 0.50;
 }