This is how your pieces look, on every board — playing, puzzles, the trainer,
reviews and the classroom. It follows you rather than a colour, so it is still your design when
you are given black, and your opponent keeps the standard set. It is remembered on this device,
so you can set it without an account and a shared school computer keeps whatever the class
prefers.
You can also change them from the board itself: press and hold any of your own pieces for
three seconds and the list opens beside it. Either way it is only your own pieces that
change — in a game against another person, each of you picks your own.
Shown on the same two square colours the boards use, so this is how they will look when you play.