As far as I can see, permissions.png is not used in core anymore. The icon is no longer shown in the place it was in Drupal 7.
In Drupal 7:

In Drupal 8:

See: #1356602: [META] Clean up icons in misc
Beta phase evaluation
| Issue category | Task because it's code cleanup |
|---|---|
| Unfrozen changes | Unfrozen because it only changes HTML/CSS |
| Comment | File | Size | Author |
|---|---|---|---|
| #4 | Screen Shot 2015-01-14 at 2.30.43 PM.png | 57.95 KB | cilefen |
| #4 | Screen Shot 2015-01-14 at 2.30.02 PM.png | 82.63 KB | cilefen |
| #3 | replace_permissions_png-2405061-3.patch | 453 bytes | ctraltdel |
Comments
Comment #1
cilefen commentedIt looks like one of these will do:
Comment #2
cilefen commentedI can't find this image used in core.
Comment #3
ctraltdel commentedRemoved the unused permissions.png file in /core/misc
Comment #4
cilefen commentedComment #5
cilefen commentedWhen this gets in, the change record should be updated. https://www.drupal.org/node/2384159
Comment #6
alexpottCommitted 7064170 and pushed to 8.0.x. Thanks!
Thanks for adding the beta evaluation to the issue summary.
Comment #8
lewisnymanUpdated changelog https://www.drupal.org/node/2384159/revisions/view/7959507/8017703