Jennifer Daniel:

“WHAT IS THE DEAL WITH THE HANDSHAKE EMOJI?” It’s a good question and worth asking in all caps. Of our many body part emoji that have skintone, Handshake (🤝) appears to be left by the wayside. After inquiring with the Unicode Technical Committee (UTC) it was clear there was a desire to address it and it was possible to fix but no one had yet proposed an appropriate solution to make it happen.

This is a well written, entertaining look at the process of moving from a need (handshakes did not represent multiple skin tones) to a reality in the emoji universe.