swap

In 1973, he swapped the Roman numerals for Arabic, and created an equation that would let you calculate decimal values if your alien civilization fell somewhere in the middle.

Transportation allows us to share ideas, see loved ones, seek out all the cool cat cafes and glacier museums, even swap our best inventions.

And bonus, the buttons are customizable cuz you can just pop them out and swap them with colored replacements to add a little personal touch, or just leave them black, which is probably how I'd go.