It’s a letter called a thorn. Its from old English, and was used for the ‘th’ sound. Its been largely removed from the languages that used to use it. I dunno why they have decided to try to bring it back, but that’s what the letter is.

Those might get mistaken for directional buttons. I had the same thought. Maybe I triangle with the point in the direction of the button, but you may run into the same issue.

I think to avoid that, it might be easiest to just show the four button layout with the correct button highlighted.