Tooltip icon class

Hi,where can I get the information, which tooltip Icon classes exist?

Thanks
Rainer

with "try and error" I have found some classes:
​
changing the size:
​
icon info circular blue inverted small
icon info circular blue inverted medium
icon info circular blue inverted big
​
changing the Color:
icon info circular red inverted small
icon info circular green inverted small
icon info circular yellow inverted small
​
There are also additional colors and combination with the size possible.

https://semantic-ui.com/elements/icon.html
​
Also, *trial and error