Does Gmail have SmartMail syntax?

Question

Google

Good afternoon.
Randomly discovered that Gmail has a new feature, judging by the names of directories and icons, it's called SmartMail.
Its essence is that based on the content of the letter, gmail structures the content.
Picture with icons - poke .
Stumbled upon it by accident. It doesn’t work quite right for me (it confuses the order of numbers a bit).
I would like to know the correct syntax, a link to the documentation ..
I searched for information on this issue - I did not find anything.
Thank you!

Answer 1

Maybe it ?