https://twitter.com/CFarrellUpdates/status/1297860182127517697/photo/2

...along with the yellow button, dazzlenation.....

 

are we back to 'slytherin' here?...and yes, I can remember emet talking about the pic below...but I cannot remember 'why' as yet....anyway, it is on the timer system....go figure:

 

https://commons.wikimedia.org/wiki/File:Los_Angeles_pedestrian_crossing_button.jpg