More work on support for light button

clock.py

@@ -405,8 +405,18 @@ class MyClockWidget(FloatLayout):
         )
 
     def update_light_button(self):
-        source = 'light_off.png'
-        rgb = [1.0, 1.0, 1.0]
+        if (self.light_state == "off"):
+            source = 'light_off.png'
+            rgb = [1.0, 1.0, 1.0]
+        elif (self.light_state == "reading"):
+            source = 'light_reading.png'
+            rgb = [1.0, 1.0, 1.0]
+        elif (self.light_state == "sunrise"):
+            source = 'light_sunrise.png'
+            rgb = [1.0, 1.0, 1.0]
+        elif (self.light_state == "on"):
+            source = 'light_on.png'
+            rgb = [1.0, 1.0, 1.0]
 
         light_button = self.ids["light_button"]
         self.draw_list_curr_frame.append(["canvas.clear()", light_button])
@@ -419,7 +429,7 @@ class MyClockWidget(FloatLayout):
 
         if alarm_settings.alarm_playing:
             source = 'playing.png'
-            rgb = [0.9, 0.9, 0.9]
+            rgb = [1.0, 1.0, 1.0]
         else:
             source = 'stopped.png'
             rgb = [1.0, 1.0, 1.0]
@@ -435,7 +445,7 @@ class MyClockWidget(FloatLayout):
 
         if (self.view == "set_alarm") or alarm_settings.alarm_activated:
             source = 'alarm_on.png'
-            rgb = [0.9, 0.9, 0.9]
+            rgb = [1.0, 1.0, 1.0]
         else:
             source = 'alarm_off.png'
             rgb = [1.0, 1.0, 1.0]
@@ -452,7 +462,7 @@ class MyClockWidget(FloatLayout):
 
         if (self.view.startswith("settings_menu")):
             source = 'settings_visible.png'
-            rgb = [0.9, 0.9, 0.9]
+            rgb = [1.0, 1.0, 1.0]
         else:
             source = 'settings_not_visible.png'
             rgb = [1.0, 1.0, 1.0]
@@ -495,7 +505,7 @@ class MyClockWidget(FloatLayout):
         alarm_settings = App.get_running_app().alarm_settings
 
         if self.view == "set_alarm":
-            # do not simulate sunrise when adjusting alarm time
+            # Do not simulate sunrise when adjusting alarm time
             return
 
         if self.seconds_to_next_alarm < 0.1:
@@ -721,6 +731,8 @@ class MyClockWidget(FloatLayout):
         alarm_settings = App.get_running_app().alarm_settings
 
         alarm_settings.reading_light_brightness = int(args[1])
+        if (self.light_state == "reading") or (self.light_state == "sunrise"):
+            self.intensity = alarm_settings.reading_light_brightness / 20.0
         print("Reading light brightness changed to " + str(alarm_settings.reading_light_brightness))
 
     def display_brightness_slider_value(self, *args):