BUR #27411 has been approved by @nonamethanks.
create implication 4-fingers_heart_hands -> heart_hands
create alias 4-fingers_heart_hands -> 4-finger_heart_hands
The new heart hands(but this tag goes back to post #2318).
There are the two most common shapes(post #7692201), but also there are others if you look for them.
I've written wiki about some part that might be confusing, but it's just my opinion, so please feel free to edit it if you have a better one.
For aliasing, I followed Zapdos' advice on discord and added it.
I'm currently adding this tag in order:id, and when I'm done with that, I'm going to work on the top-thumbs_heart_hand tag(planned for now).