Related to #23031#note-1.

Index: public/stylesheets/application.css¶

--- public/stylesheets/application.css  (revision 16055)

+++ public/stylesheets/application.css  (working copy)

@@ -1230,7 +1230,6 @@

 .icon-lock, .icon-locked  { background-image: url(../images/locked.png); }

 .icon-unlock  { background-image: url(../images/unlock.png); }

 .icon-checked  { background-image: url(../images/toggle_check.png); }

-.icon-details  { background-image: url(../images/zoom_in.png); }

 .icon-report  { background-image: url(../images/report.png); }

 .icon-comment, .icon-comments  { background-image: url(../images/comment.png); }

 .icon-summary  { background-image: url(../images/lightning.png); }