theme: Update message-tray style in the overview

The currently used style works well in "normal" mode, where the
tray is shown to be located beneath the window layer (pushing the
latter up when revealed). It does not work very well in the overview,
so use the same style as dash and workspace switcher there.

diff --git a/data/theme/gnome-shell.css b/data/theme/gnome-shell.css
index fe46ca38259356c3021ef48cf9a4aca65ac529f3..a502fa12934faceec77b911624e30d8043bfd9d1 100644 (file)
--- a/data/theme/gnome-shell.css
+++ b/data/theme/gnome-shell.css
@@ -1177,6 +1177,11 @@ StButton.popup-menu-item:insensitive {
     height: 72px;
 }
 
+#message-tray:overview {
+    background: rgba(0, 0, 0, 0.5);
+    border-top: 1px solid rgba(128, 128, 128, 0.4);
+}
+
 .notification {
     font-size: 11pt;
     border-radius: 10px 10px 0px 0px;