Console Event Question

[D8ATech]

I am going through the brand new documentation and I have completed stopwatch.py. I am running the app with textual run --dev stopwatch.py and in another terminal window I have run textual console to view the events.

My question is about the events that I see are being fired when I click a start button on one to the stop watches.

I see:

[07:15:06] EVENT                                                                                                                                                                           message_pump.py:428
Pressed(Button(id='start', classes={'-success', '-default', '-active'}, pseudo_classes={'hover', 'focus', 'focus-within'}, variant='success')) >>> Stopwatch(pseudo_classes={'focus-within'})
method=<Stopwatch.on_button_pressed>
[07:15:06] EVENT                                                                                                                                                                           message_pump.py:428
Hide() >>> Button(id='start', classes={'-success', '-default', '-active'}, pseudo_classes={'hover', 'focus', 'focus-within'}, variant='success') method=<Widget.on_hide>
[07:15:06] EVENT                                                                                                                                                                           message_pump.py:428
Blur() >>> Button(id='start', classes={'-success', '-default', '-active'}, pseudo_classes={'hover', 'focus'}, variant='success') method=<Widget.on_blur>
[07:15:06] EVENT                                                                                                                                                                           message_pump.py:428
Hide() >>> Button(id='reset', classes={'-default'}) method=<Widget.on_hide>

My question is, immediately after the Pressed(Button... event I see two events, Hide() and Blur() both on the Start button. Why does a blur need to be performed on an object that has been hidden?

As a result of clicking Start the Reset button is also hidden but for this object, there is only a Hide() event, not a Blur(). Is this because the Stop button has to become visible in the same spot at the Start button?

I also don't see any event making the Stop button visible

Clicking Stop, I see the same Hide() and Blur() events. this time for the Stop button, but then I see a Focus() event on the Start button and I don't see an event for the Reset button becoming visible (but in the app it does become visible)

Pressed(Button(id='stop', classes={'-error', '-default', '-active'}, pseudo_classes={'focus', 'focus-within'}, variant='error')) >>> Stopwatch(classes={'started'}, pseudo_classes={'hover', 'focus-within'})
method=<Stopwatch.on_button_pressed>
[07:23:54] EVENT                                                                                                                                                                           message_pump.py:428
Hide() >>> Button(id='stop', classes={'-error', '-default', '-active'}, pseudo_classes={'focus', 'focus-within'}, variant='error') method=<Widget.on_hide>
[07:23:54] EVENT                                                                                                                                                                           message_pump.py:428
Blur() >>> Button(id='stop', classes={'-error', '-default', '-active'}, pseudo_classes={'focus'}, variant='error') method=<Widget.on_blur>
[07:23:54] EVENT                                                                                                                                                                           message_pump.py:428
Focus() >>> Button(id='start', classes={'-success', '-default'}, pseudo_classes={'focus-within'}, variant='success') method=<Widget.on_focus>

Do I need to enable a Debug mode to see events that get fired by other events?