Some clarification: Margin of the folder is fine (8px). The margin of the label in the tile however, does not appear to be to spec (8px as well).

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e2d14d46fdd786e6bd2d2853559f797dbfc93262

commit e2d14d46fdd786e6bd2d2853559f797dbfc93262
Author: Daniel Zhang <oxyflush@google.com>
Date: Thu Aug 23 19:11:25 2018

cros: Change padding of AppList item titles.

Change padding of title label in AppListItemView
from 0px to 8px to match specifications:

https://screenshot.googleplex.com/bmrE2eaixE0

Bug:  876503 
Change-Id: Id12b3ddfe4bc95372d236b81468e25db5db576b5
Reviewed-on: https://chromium-review.googlesource.com/1186098
Reviewed-by: Xiyuan Xia <xiyuan@chromium.org>
Reviewed-by: Alex Newcomer <newcomer@chromium.org>
Commit-Queue: Daniel Zhang <oxyflush@google.com>
Cr-Commit-Position: refs/heads/master@{#585570}
[modify] https://crrev.com/e2d14d46fdd786e6bd2d2853559f797dbfc93262/ash/app_list/views/app_list_item_view.cc
[modify] https://crrev.com/e2d14d46fdd786e6bd2d2853559f797dbfc93262/ash/public/cpp/app_list/app_list_config.cc
[modify] https://crrev.com/e2d14d46fdd786e6bd2d2853559f797dbfc93262/ash/public/cpp/app_list/app_list_config.h