[gnome-builder] shortcuts: addjust key styling a bit

[Christian Hergert <chergert src gnome org>]

commit 111b7602191b54d6d77c0210f7dc3c748a761798
Author: Christian Hergert <christian hergert me>
Date:   Fri Aug 28 13:01:30 2015 -0700

    shortcuts: addjust key styling a bit

 data/theme/Adwaita-dark.css |    4 ++--
 data/theme/Adwaita.css      |    1 -
 2 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/data/theme/Adwaita-dark.css b/data/theme/Adwaita-dark.css
index 7416ad2..6c68fa2 100644
--- a/data/theme/Adwaita-dark.css
+++ b/data/theme/Adwaita-dark.css
@@ -40,11 +40,11 @@ GbTree:backdrop.dim-label {
 
 GbAccelLabel GtkFrame {
   background-color: #222;
-  background-image: linear-gradient(#2e3436, #1c1f1f);
   border: 1px solid #cecece;
   border-color: #1c1f1f;
   border-radius: 5px;
   color: #eeeeec;
   padding: 3px 8px 3px 8px;
-  box-shadow: 0px 1px 0px #5c5c5c inset;
+  box-shadow: 0px 1px 0px #333 inset,
+              0px -1px 0px #111 inset;
 }
diff --git a/data/theme/Adwaita.css b/data/theme/Adwaita.css
index 8a78817..cf1c5de 100644
--- a/data/theme/Adwaita.css
+++ b/data/theme/Adwaita.css
@@ -46,7 +46,6 @@ GbTree:backdrop.dim-label {
 
 GbAccelLabel GtkFrame {
   background-color: #fefefe;
-  background-image: linear-gradient(#FEFEFE, #EFEFEF);
   border: 1px solid #cecece;
   border-radius: 5px;
   box-shadow: 0px 1px 0px #fff inset,