[gnome-builder] prefs: restore sidebar styling

[Christian Hergert <chergert src gnome org>]

commit 6a022ed53e8aaf6d7a86ff8c6a9a80efeee00ad4
Author: Christian Hergert <christian hergert me>
Date:   Mon Aug 31 02:07:02 2015 -0700

    prefs: restore sidebar styling

 data/theme/shared.css |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/data/theme/shared.css b/data/theme/shared.css
index 859753e..5c58451 100644
--- a/data/theme/shared.css
+++ b/data/theme/shared.css
@@ -32,7 +32,12 @@
 .preferences.sidebar GtkListBoxRow {
   padding: 10px;
 }
-
+.preferences.sidebar GtkListBoxRow:not(:selected) {
+  background-color: shade(@theme_bg_color, 0.99);
+}
+.preferences.sidebar GtkListBoxRow:hover:not(:selected) {
+  background-color: shade(@theme_bg_color, 1.02);
+}
 
 GbPreferencesSwitch:prelight {
   background-color: shade(@theme_bg_color, 1.01);