+# As of tmux 1.6 we can highlight different alerts.
+setw -g window-status-bell-bg colour22
+setw -g window-status-bell-fg white
+setw -g window-status-content-bg colour88
+setw -g window-status-content-fg white
+setw -g window-status-content-attr none
+setw -g window-status-activity-bg red
+setw -g window-status-activity-fg white