This new flag showed up in Chrome OS Canary Channel couple of days ago, New style notification. The description said:
Enables the experiment style of material-design notification #enable-message-center-new-style-notification
I turned it on, restarted my Chromebook and waited. For some reason I did not notice any change that day. However, I noticed this different design for notifications this evening.
For comparison, let me show you how it looked like before this flag:
Now, here is how it looks like now for me:
These new notifications are flat, and white. I am not quite sure if they are supposed to look like this. This could be the first iteration of a new notification system? What they are trying to make Chrome OS notifications look more like Android O notifications?
Future iterations of this notification system might allow developers to customize them. That might be why these are blank / white. That’s just my speculation though.
Anyways, I will keep monitoring these new notifications for you all. Stay tuned to Chrome Story for more on this, and a lot of other exciting Chromebook news.