The Internet Siren

There's two ways Unicode can display emojis, the first is to put it in as a new Unicode symbol, and this pretty much takes the same amount of work and storage space as putting another letter in the Unicode system

Or they can just stick two emojis together with a third blank joining designation emoji (know as a Zero-width joiner or ZWJ) and have them display a third image when everything is correctly strung together, witch takes far less space in the Unicode system

One of the few times you can tell from a glance if an emoji is internally a ZWJ combo or not is if you are on a system that is not up to date on Unicode updates, where the new symbols will either display as a blank or X'ed out square (known informally as tofu), or as the internal ZWJ emoji combo depending on how it's in the system

angelic southern gothic graphics f2u