File themes-csd-titlebar-fix.patch of Package ubuntu-mate-artwork

--- a/usr/share/themes/Ambiant-MATE/gtk-3.0/gtk-widgets.css
+++ b/usr/share/themes/Ambiant-MATE/gtk-3.0/gtk-widgets.css
@@ -66,7 +66,7 @@
     -gtk-icon-style: regular; /* disable symbolic icons */
 }
 
-.background {
+.titlebar, .background {
     color: @fg_color;
     background-color: @bg_color;
 }
--- a/usr/share/themes/Radiant-MATE/gtk-3.0/gtk-widgets.css
+++ b/usr/share/themes/Radiant-MATE/gtk-3.0/gtk-widgets.css
@@ -65,7 +65,7 @@
     -gtk-icon-style: regular; /* disable symbolic icons */
 }
 
-.background {
+.titlebar, .background {
     color: @fg_color;
     background-color: @bg_color;
 }