[banshee] TrackInfoDisplay: proper mid color for 'from' and 'by' (bgo#732898)

[Andrés Aragoneses <aaragoneses src gnome org>]

commit 25fec2bcaea4b601f20ff7441062addb6b85744f
Author: Andrés G. Aragoneses <knocte gmail com>
Date:   Tue Jul 8 15:54:13 2014 +0200

    TrackInfoDisplay: proper mid color for 'from' and 'by' (bgo#732898)
    
    The mid-color between the default text color and the background color
    of the widget was not being calculated properly because the background
    color obtained for the TrackInfoDisplay widget was the same as the text
    color. This behaviour must have changed recently in GTK3, but what we
    are sure about is that using the Parent's reference colors we get the
    proper colors again (probably because the parent of this widget would
    be a ToolItem, inside a Toolbar, which has its background color surely
    defined, compared to TrackInfoDisplay widget which is implemented in
    the Banshee codebase.

 .../Banshee.Gui.Widgets/TrackInfoDisplay.cs        |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/Core/Banshee.ThickClient/Banshee.Gui.Widgets/TrackInfoDisplay.cs 
b/src/Core/Banshee.ThickClient/Banshee.Gui.Widgets/TrackInfoDisplay.cs
index 179ee3c..3722737 100644
--- a/src/Core/Banshee.ThickClient/Banshee.Gui.Widgets/TrackInfoDisplay.cs
+++ b/src/Core/Banshee.ThickClient/Banshee.Gui.Widgets/TrackInfoDisplay.cs
@@ -105,7 +105,7 @@ namespace Banshee.Gui.Widgets
         protected virtual Cairo.Color TextLightColor {
             get {
                 if (!text_light_color.HasValue) {
-                    text_light_color = Hyena.Gui.Theming.GtkTheme.GetCairoTextMidColor (this);
+                    text_light_color = Hyena.Gui.Theming.GtkTheme.GetCairoTextMidColor (Parent);
                 }
                 return text_light_color.Value;
             }