allow background image to be chosen from config.

Signed-off-by: root <root@ipekatrinadei.ipe.kit.edu>

core.py

@@ -252,6 +252,7 @@ class StatusHandler(tornado.web.RequestHandler):
             return
         
 	data = {
+            "background": config['background'],
             "style": style_data,
             "varname": varname_data
         }

static/background.png

@@ -0,0 +1 @@
+cps_02.png

status.html

@@ -121,9 +121,13 @@ data-cond="{{ data['style'][key]['cond'] }}"
 {% else %}
 {% end %}
 
-    
 
-<img src="{{ static_url('background.png') }}"></img>    
+
+{% if "background" in data %}
+<img src="{{ static_url( data['background'] ) }}"></img>    
+{% else %}
+<img src="{{ static_url( 'background.png' ) }}"></img>
+{% end %}
 
    
 <!-- java script -->