Fixed Brightness Init

Author: Melissa LeBlanc-Williams

adafruit_featherwing/dotstar_featherwing.py

@@ -49,7 +49,7 @@ def __init__(self, clock=board.D13, data=board.D11, brightness=0.2):
         self.columns = 12
         self._auto_write = True
         self._dotstar = dotstar.DotStar(clock, data, self.rows * self.columns,
-                                        brightness=self._brightness, auto_write=False)
+                                        brightness=brightness, auto_write=False)
 
     def __setitem__(self, indices, value):
         """
@@ -361,4 +361,4 @@ def brightness(self):
     @brightness.setter
     def brightness(self, brightness):
         self._dotstar.brightness = min(max(brightness, 0.0), 1.0)
-        self._update()
+        self._update()