Transparent icons & text

Makes icons and text transparent when possible.
This helps with #1134

nspanel_esphome_advanced.yaml

@@ -12,20 +12,20 @@ captive_portal:
 time:
   - id: !extend time_provider
     on_time_sync:
-        then:
+      then:
         - component.update: api_timestamp
         - component.update: device_timestamp
 
 api:
   services:
-      ##### Service to play a rtttl tones #####
-      # Example tones : https://codebender.cc/sketch:109888#RTTTL%20Songs.ino
-      - service: play_rtttl
-        variables:
-          song_str: string
-        then:
-          - rtttl.play:
-              rtttl: !lambda 'return song_str;'
+    ##### Service to play a rtttl tones #####
+    # Example tones : https://codebender.cc/sketch:109888#RTTTL%20Songs.ino
+    - service: play_rtttl
+      variables:
+        song_str: string
+      then:
+        - rtttl.play:
+            rtttl: !lambda 'return song_str;'
 
 button:
   ##### EXIT REPARSE TFT DISPLAY #####