Could do

ampel-firmware/led_effects.cpp

@@ -142,6 +142,7 @@ namespace led_effects {
   }
 
   void turnLEDsOnOff(int32_t display_led) {
+    //TODO: Could use strategy pattern with 2 different Effects classes.
     config::display_led = display_led;
     if (config::display_led) {
       Serial.println(F("LEDs are on!"));