In the UK some crosswalks have cones on the bottom of the box where the button to wait to cross is, and OP mentioned crosswalks in the final sentence. Maybe it'

In the UK some crosswalks have cones on the bottom of the box where the button to wait to cross is, and OP mentioned crosswalks in the final sentence. Maybe it's just too late for me right now, but that's what my brain assumed, but the "same number of shapes as" thing was not enough context! the cone on the bottom spins when you have the right of way.