Just something I do. If you've got a complete meme (perhaps a stolen one or a template you want to leave blank.) - and you don't want to add anything....you add a period and find a color matching area to hide it.
In my case I make it stand out...because like (PhD) professor Donna Harraway - I am a cyborg anthropologist. A RED TEAM cyborg anthropologist - and the eye comes from "The Terminator", as a hint.