Most ones I've seen here in Finland (and Scandinavia generally, perhaps most of Europe) it's coloured green. Like exit (and emergency-exit) signs, to show “this

Most ones I've seen here in Finland (and Scandinavia generally, perhaps most of Europe) it's coloured green. Like exit (and emergency-exit) signs, to show “this is the way out of the building”. And before anyone goes raging about “ableism against the colourblind!”, that's usually much darker than the rest of them, so it stands out anyway.