I am studying the Symfony\Component\Debug\Debug.
As far as I know the AppKernel's constructor can accept a second argument to define whether to use the debug modality or not (true/false).
What I actually don't understand is the usage and complementarity of Debug::enable() as it is indicated in the app_dev.php on the official Symfony Github's repository.
For example I tried to throw an Exception on a Controller in order to see the effect and I commented Debug::enable(); within app_dev.php but I always see the error page.
Why am I still seeing error traces in spite of commenting out Debug::enable();?