This topicon is for the Recent Changes patrollers to put on their user pages. This template is not blank; it adds a little icon in the top-right corner. See?
Usage
Place {{RC patroller topicon}} anywhere on your user page.
This icon is based on {{Top icon}}.
Use |othericon=yes
for an alternative icon (File:Edit-find-replace.svg) instead of the badge.
See also
Wikipedia:Recent changes patrol