implement random_grb() function

src/blinki.py

@@ -3,6 +3,16 @@ from blinkstick import blinkstick
 from random import randint, choice
 from time import sleep
 
+def random_grb():
+    """
+    Get a random GRB array.
+    """
+    # get a random initial color
+    return [
+        randint(1, 255),
+        randint(1, 255),
+        randint(1, 255)
+    ]
 def set_all_leds(device, grb=[0,0,0]):
     """
     Takes a GRB color array as input and sets the color on all LEDs.
@@ -49,11 +59,7 @@ def morph_grb(grb, steps, mode='single'):
 device = blinkstick.find_first()
 
 # get a random initial color
-grb = [
-    randint(1, 255),
-    randint(1, 255),
-    randint(1, 255)
-]
+grb = random_grb()
 
 while True:
     set_all_leds(device, grb)