[gtk+] W32: override selected button style to remove colored background

[Руслан Ижбулатов <ruslanizhb src gnome org>]

commit 0dd810ee22ed6cb94cce0d7c59de205777eb4862
Author: Руслан Ижбулатов <lrn1986 gmail com>
Date:   Thu May 1 18:17:30 2014 +0000

    W32: override selected button style to remove colored background
    
    https://bugzilla.gnome.org/show_bug.cgi?id=729353

 gtk/resources/theme/gtk-win32-base.css |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/gtk/resources/theme/gtk-win32-base.css b/gtk/resources/theme/gtk-win32-base.css
index e5c0349..951bd26 100644
--- a/gtk/resources/theme/gtk-win32-base.css
+++ b/gtk/resources/theme/gtk-win32-base.css
@@ -159,6 +159,11 @@ GtkAssistant .sidebar .highlight {
     color: @text_color;
 }
 
+/* Override *:selected { ...} style; affects horizontal-buttons */
+.button:selected {
+  background-color: transparent;
+}
+
 /* Check buttons */
 
 /* Prevent selected check/radio buttons from getting the "selected" blue background */