Sammie, do you have time to take a look?

elizabethchiu - I uploaded a screencast of the current behaviour - I don't know how to only cast that window though.

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+Namrata owner of the Web UI design.

Would you mind to let us know what is the proper ripples for web-ui?

The ripple behavior on the numpad is not per spec.

1.The color should be similar to:
https://docs.google.com/presentation/d/1kXbnGrFln4CapA0bavU5zjZLALqeD4aQikVVKSJ0zFg/edit#slide=id.g364d7f9db1_0_0

2.Plus the ripple lasts only for pressed/focused state. Here there seems to be a lag. And it expands from the center.Example any icon button in webui.
Attaching gif
  

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The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/f0e8e86f030d12688914f9b29f632542261682bc

commit f0e8e86f030d12688914f9b29f632542261682bc
Author: Sammie Quon <sammiequon@google.com>
Date: Tue Aug 14 21:04:21 2018

settings: Update ripples on setup PIN keyboard.

Also fix a bug where continue button was still enabled after tabbing to
and pressing backspace with the keyboard.

Test: manual
Bug:  855014 ,  869641 
Change-Id: I0f3e570fc87b1a2e60de112de47558885f5d4847
Reviewed-on: https://chromium-review.googlesource.com/1173139
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: Sammie Quon <sammiequon@chromium.org>
Cr-Commit-Position: refs/heads/master@{#583030}
[modify] https://crrev.com/f0e8e86f030d12688914f9b29f632542261682bc/chrome/browser/resources/settings/people_page/setup_pin_dialog.js
[modify] https://crrev.com/f0e8e86f030d12688914f9b29f632542261682bc/ui/webui/resources/cr_components/chromeos/quick_unlock/pin_keyboard.html