Love Who You Are Graffiti

"Love who you are!" graffiti scrawled on the brick wall surrounding the 5th Avenue ConEd electrical substation

I saw this positive graffiti–“Love who you are!”–scrawled on the brick wall surrounding the 5th Avenue ConEd electrical substation. The “o” in “love” has a Sharpie drawn smiley face.

I noticed that there is a sheen on the unpainted bricks. It made me wonder if ConEd had painted or treated the bricks with something to make it easier to clean off graffiti, or has the previous graffiti removals polished the brick?