[gnome-music/wip/jfelder/core-playlists-view] css: Workaround to avoid a black border around AlbumWidget

[Jean Felder <jfelder src gnome org>]

commit 3ab3a8a7746087a00cd67e1c141dd102f27992cd
Author: Jean Felder <jfelder src gnome org>
Date:   Sat Jul 13 17:38:36 2019 +0200

    css: Workaround to avoid a black border around AlbumWidget
    
    https://gitlab.gnome.org/GNOME/gtk/issues/694

 data/org.gnome.Music.css | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
---
diff --git a/data/org.gnome.Music.css b/data/org.gnome.Music.css
index 566376cc..dd4e166e 100644
--- a/data/org.gnome.Music.css
+++ b/data/org.gnome.Music.css
@@ -114,6 +114,23 @@ box#ArtistAlbumsWidget .artist-label {
 
 /* Lists style */
 
+/* workaround to avoid a black background issue
+in AlbumWidget and PlaylistsView
+https://gitlab.gnome.org/GNOME/gtk/issues/694
+*/
+list {
+    background-color: transparent;
+}
+
+/* workaround to avoid a black background issue
+in AlbumWidget and PlaylistsView
+https://gitlab.gnome.org/GNOME/gtk/issues/694 */
+.songs-list > row {
+    background-color: @theme_base_color;
+}
+
+
+
 .disc-list-box > row {
 padding: 0px;
 }