TikTok is missing from the selections
Folks, our former Wishlist portal, where our users shared their requests and suggestions, was transferred to this forum. You’re most welcome to vote, add new ideas, and leave your comments here — we surely will consider them all! 
Original Votes: 6
The option has been added. You are welcome to check it in the Demo at Add custom Social Media Icons widget to Website - Elfsight on the Content tab.