use circuitpython 7+ compatible by default

Author: FoamyGuy

PyPortal_Smart_Thermometer/thermometer_helper.py

@@ -136,13 +136,13 @@ def set_icon(self, filename):
             self._icon_file.close()
 
         # CircuitPython 6 & 7 compatible
-        self._icon_file = open(filename, "rb")
-        icon = displayio.OnDiskBitmap(self._icon_file)
-        self._icon_sprite = displayio.TileGrid(icon,
-                                               pixel_shader=getattr(icon, 'pixel_shader', displayio.ColorConverter()))
+        # self._icon_file = open(filename, "rb")
+        # icon = displayio.OnDiskBitmap(self._icon_file)
+        # self._icon_sprite = displayio.TileGrid(icon,
+        #                                        pixel_shader=getattr(icon, 'pixel_shader', displayio.ColorConverter()))
 
         # # CircuitPython 7+ compatible
-        # icon = displayio.OnDiskBitmap(filename)
-        # self._icon_sprite = displayio.TileGrid(icon, pixel_shader=icon.pixel_shader)
+        icon = displayio.OnDiskBitmap(filename)
+        self._icon_sprite = displayio.TileGrid(icon, pixel_shader=icon.pixel_shader)
 
         self._icon_group.append(self._icon_sprite)