diff --git a/code/boot.py b/code/boot.py
index 61030cd..1ebe6cc 100644
--- a/code/boot.py
+++ b/code/boot.py
@@ -6,7 +6,7 @@ import gc
 import time
 import network
 import webrepl
-from config import known_wifi_ap
+from config import KNOWN_WIFI_AP
 
 # Connect to one of the known wifi AP
 WLAN = network.WLAN(network.STA_IF)
@@ -18,10 +18,10 @@ for ap in AP_LIST:
         break
 
     ap_ssid = ap[0].decode("utf-8")
-    if ap_ssid in known_wifi_ap.keys():
+    if ap_ssid in KNOWN_WIFI_AP.keys():
         print("Known wifi network found : {}".format(ap_ssid))
         print("Try to connect...")
-        WLAN.connect(ap_ssid, known_wifi_ap[ap_ssid])
+        WLAN.connect(ap_ssid, KNOWN_WIFI_AP[ap_ssid])
 
     DELAY = 0
 
diff --git a/code/lib/light_modes.py b/code/lib/light_modes.py
index da59d6b..6b9d0d3 100644
--- a/code/lib/light_modes.py
+++ b/code/lib/light_modes.py
@@ -55,7 +55,8 @@ def fill_white(np_strp, col=(255, 255, 255)):
     :param np_strp : NeoPixel object
     :param col : color [R, G, B] (ignored, default=(255, 255, 255))
     """
-    np_strp.fill((255, 255, 255))
+    col = (255, 255, 255)
+    np_strp.fill(col)
 
 
 def sparkles(np_strp, col):
@@ -67,11 +68,10 @@ def sparkles(np_strp, col):
         np_strp[pix] = col
 
 
-def christmas(np_strp, col):
-    """Shine like christmas tree °<:oD
-    TODO !!!
-    """
-    pass
+# def christmas(np_strp, col):
+#     """Shine like christmas tree °<:oD
+#     TODO !!!
+#     """
 
 
 MODES_LST = (fill_usr, fill_white, sparkles)
diff --git a/code/main.py b/code/main.py
index 6e92692..82f8579 100644
--- a/code/main.py
+++ b/code/main.py
@@ -21,7 +21,6 @@ __version__ = 0.3
 # Imports
 
 import time
-import sys
 import machine
 import esp
 import neopixel
@@ -123,8 +122,6 @@ def MqttMultiPublish(payload, sleep=0):
 
 def power_cycle():
     """ON/OFF function"""
-    global PWR
-    global BRIGHTN
 
     PWR = not PWR
     print("Power :", PWR)
@@ -185,9 +182,8 @@ def update_button_c(button, button_state, pwr, mode):
 
 def update_wifi_led():
     """Refresh Wifi status LED"""
-    global WIFI_LED
-    global WLAN
-    WIFI_LED = WLAN.isconnected()
+
+    WIFI_LED.value = not WLAN.isconnected()
 
 
 #####################