Make candle turn off when nothing is happening

Change-Id: I4e56592cf231a0990631623b2fefc93f351e6634
Signed-off-by: Austin Schuh <austin.linux@gmail.com>
diff --git a/y2023/control_loops/superstructure/led_indicator.cc b/y2023/control_loops/superstructure/led_indicator.cc
index 48bca1b..afd0201 100644
--- a/y2023/control_loops/superstructure/led_indicator.cc
+++ b/y2023/control_loops/superstructure/led_indicator.cc
@@ -34,7 +34,7 @@
   config.brightnessScalar = 1.0;
   candle_.ConfigAllSettings(config, 0);
 
-  event_loop_->AddPhasedLoop([&](int) { DecideColor(); },
+  event_loop_->AddPhasedLoop([this](int) { DecideColor(); },
                              std::chrono::milliseconds(20));
 }
 
@@ -177,9 +177,9 @@
       DisplayLed(0, 0, 255);
       return;
     }
-
-    return;
   }
+
+  DisplayLed(0, 0, 0);
 }
 
 }  // namespace y2023::control_loops::superstructure