Scrollable windows flash their scrollbars when focused.
No doubt there's a setting for this somewhere in OSX, but that isn't happening for me in Chrome, and it doesn't happen in the notifications panel where the Do Not Disturb toggle is either. What's worse, I set scrollbars to "Always show" in preferences it still doesn't show me that there are hidden options at the top of the notifications panel. There is nothing in the UI to indicate that those are there.
No doubt there's a setting for this somewhere in OSX, but that isn't happening for me in Chrome, and it doesn't happen in the notifications panel where the Do Not Disturb toggle is either. What's worse, I set scrollbars to "Always show" in preferences it still doesn't show me that there are hidden options at the top of the notifications panel. There is nothing in the UI to indicate that those are there.