[clock.py] Option to fill the watch face

Nowadays I prefer the clock face black.

polybar/clock.py

@@ -6,6 +6,9 @@ import time
 import pytz
 
 
+FILL_CLOCK_FACE = False
+
+
 try:
     # if len(sys.argv) < 3:
         # print("Usage: {scriptname} timezone_left timezone_right".format(scriptname=sys.argv[0]), file=sys.stderr)
@@ -26,7 +29,10 @@ try:
         minute = minutehands[ t.minute // 5 ]
         hour   = hourhands  [ t.hour % 12   ]
 
-        return color_for(t) + "%{T8}%{F}%{F#000}%{O-27}" + hour + "%{O-27}" + minute + "%{T-}%{F}"
+        if FILL_CLOCK_FACE:
+            return color_for(t) + "%{T8}%{F#000}%{O-27}" + hour + "%{O-27}" + minute + "%{T-}%{F}"
+        else:
+            return "%{O1}%{T8}" + color_for(t) + "%{O-27}" + hour + "%{O-27}" + minute + "%{T-}%{F}"
 
 
     def color_for(t):