[gnome-music/wip/mschraal/dark-mode-tile-css] data: Fix dark mode album tiles

[Marinus Schraal <mschraal src gnome org>]

commit 4011eb91c387f09c2c914ffbb979fc6094f05afe
Author: Marinus Schraal <mschraal gnome org>
Date:   Tue Sep 18 11:29:33 2018 +0200

    data: Fix dark mode album tiles
    
    By default the Adwaita dark .tile has no transparent background, but in the
    Music case it looks better that way.

 data/org.gnome.Music.css | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/data/org.gnome.Music.css b/data/org.gnome.Music.css
index b2368102..61547654 100644
--- a/data/org.gnome.Music.css
+++ b/data/org.gnome.Music.css
@@ -7,6 +7,11 @@
     font-size: smaller;
 }
 
+/* By default in Adwaita dark this is not transparent */
+.tile {
+    background-color: transparent;
+}
+
 /* AlbumWidget */
 .title-artist {
     font-size: larger;