theme: Put back the transition from overview to desktop for the message tray

https://bugzilla.gnome.org/show_bug.cgi?id=682271

diff --git a/data/theme/gnome-shell.css b/data/theme/gnome-shell.css
index fdc973104e2cfeb9fe3a40fa79a7fa4b838aa977..b5c1204ab5c0e1c07aff69e419eea6b7c43b623a 100644 (file)
--- a/data/theme/gnome-shell.css
+++ b/data/theme/gnome-shell.css
@@ -1166,6 +1166,7 @@ StButton.popup-menu-item:insensitive {
 #message-tray {
     background: #2e3436 url(message-tray-background.png);
     background-repeat: repeat;
+    transition-duration: 250;
     height: 72px;
 }