Support Second controller port (or not if disabled) and have a fancy background

examples/PoolBox/application/src/Overlay/ControllerTest/include/controller_state.hpp

@@ -61,7 +61,7 @@ namespace ControllerTest {
         }
 
         void setup();
-        void update(const Periphery::AnalogeController& controller, JabyEngine::FontWriter& font_writer);
+        void update(const Periphery::AnalogeController* controller, JabyEngine::FontWriter& font_writer);
         void render();
     };
 }