Seeing it from the outside, it clearly should be random alien characters rather than a square.  It already looks kind of futuristic.  Alien characters would make the illiterate humans freak out.  All future buildings are going to be lit by alien characters stuck to the ceiling where floor lamps used to be.  

Pulling it off requires wires too long to support the high current of the Lighting Evers.  

Of course, there aren't many hieroglyphs of any kind which don't make humans have a shit fit.  They'd burn the library of Alexandria, if they could read.