[gnome-boxes] Make fullscreen toolbar transparent

[Alexander Larsson <alexl src gnome org>]

commit 71951c4ca05a8d4dd7bcb3cd94adc8b27e28158f
Author: Alexander Larsson <alexl redhat com>
Date:   Wed Jan 23 11:23:19 2013 +0100

    Make fullscreen toolbar transparent
    
    This picks a background color and alpha like in the mockups:
    https://github.com/gnome-design-team/gnome-mockups/blob/master/boxes/boxes-fullscreen.png
    
    https://bugzilla.gnome.org/show_bug.cgi?id=674663

 data/gtk-style.css    |    4 ++++
 src/display-page.vala |    1 +
 2 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/data/gtk-style.css b/data/gtk-style.css
index 02b3201..88da889 100644
--- a/data/gtk-style.css
+++ b/data/gtk-style.css
@@ -48,6 +48,10 @@ BoxesMiniGraph {
     background-image: none;
 }
 
+.boxes-overlay-toolbar {
+    background-color: rgba(20,20,20,0.85);
+}
+
 .boxes-property-name-label {
     color: #bebebe;
 }
diff --git a/src/display-page.vala b/src/display-page.vala
index 9863494..b1f5ac7 100644
--- a/src/display-page.vala
+++ b/src/display-page.vala
@@ -114,6 +114,7 @@ private class Boxes.DisplayPage: GLib.Object {
         overlay_toolbar_box.add (overlay_toolbar);
         overlay_toolbar_box.valign = Gtk.Align.START;
         overlay_toolbar_box.vexpand = false;
+        overlay_toolbar.get_style_context ().add_class ("boxes-overlay-toolbar");
 
         notification_grid = new Grid ();
         notification_grid.valign = Gtk.Align.START;