We create or add what our users ask whenever we think is an interesting addition to our sets at no extra cost for our users.
Simply specify your icon request and on which set would you like us to include it.
Example : anonymous icon - Streamline Regular Set
You may also vote for cool features for Streamline, and even suggest some ideas of your own https://streamline.canny.io/.
You will need to make account to interact, but this is completely free. 😉