[Images are of a table with red, yellow, and green stickers as well as a sign on it. The sign explains that they are interaction stickers to let attendees know your interaction preferences.]
LinuxCon added communication stickers to their their con! Thank you for increasing access- we hear it went over well!
This is a fantastic step forward, a great way to help people of all abilities and neurotypes interact safely in a shared space, but, a reminder! The original traffic light badge system piloted by the autistic community involved symbols as well as colours so that people who are colourblind could follow the system too. Since red-green colourblindness is one of the commonest forms, and red and green are polar opposites in what kind of interaction a person wants, please, if you want to do a communication system, remember that colourblindness is a thing and put symbols on your badges/stickers.