Urgent Hint Notification - Blinking Window Button

[cinquecento]

How reproduce:        

xfce4-terminal - A Terminal emulator for X

~/.config/xfce4/terminal/terminalrc 
[Configuration]
MiscBellUrgent=TRUE

Within   xfce4-terminal

$ xdotool windowminimize $(xdotool getactivewindow) ; sleep 5 ; echo -e '\a'

xterm - terminal emulator for X

~/.Xresources
XTerm*bellIsUrgent: True

Within   xterm

$ xrdb -merge .Xresources
$ xdotool windowminimize $(xdotool getactivewindow) ; sleep 5 ; echo -e '\a'

[PATCH]
Widget "XfceTasklist" style "window-buttons" bg[SELECTED] from Greybird theme,
to achieve the necessary contrast for Urgent Hint Notification - Blinking Window Button,
currently the contrast is barely noticeable.

---
 gtk-2.0/apps/xfce-panel.rc | 7 +++++++
 gtk-2.0/gtkrc              | 3 +++
 2 files changed, 10 insertions(+)
 create mode 100644 gtk-2.0/apps/xfce-panel.rc

diff --git a/gtk-2.0/apps/xfce-panel.rc b/gtk-2.0/apps/xfce-panel.rc
new file mode 100644
index 0000000..a907565
--- /dev/null
+++ b/gtk-2.0/apps/xfce-panel.rc
@@ -0,0 +1,7 @@
+style "window-buttons" = "theme-panel"
+{
+   bg[SELECTED]    = shade (0.85, @selected_bg_color)
+}
+
+# Override general panel-style with specific plugin-styles
+widget "*XfceTasklist*"            style "window-buttons"
diff --git a/gtk-2.0/gtkrc b/gtk-2.0/gtkrc
index 7489b6b..8d89fda 100644
--- a/gtk-2.0/gtkrc
+++ b/gtk-2.0/gtkrc
@@ -721,3 +721,6 @@ widget_class "*GimpToolbox*" style "performance-fix"
 widget_class "*GimpMenuDock*" style "performance-fix"
 widget "*OOoFixed*" style "performance-fix" # Openoffice/Libreoffice
 widget_class "*MozContainer*" style "performance-fix" # Firefox (Not sure if this one does anything though.)
+
+# panel theming
+include "apps/xfce-panel.rc"
-- 
2.7.4