witech You can do it with Javascript. For my purposes I need to remove the "Tags" add the "Categories" and the "Private Discussions" links. BUT if you're just changing the icon and nothing else then something like this will do it:
let mobileTabTagsIcon = document.getElementsByClassName("MobileTab")[0].getElementsByClassName("item-tags")[0].getElementsByTagName("span")[0];
mobileTabTagsIcon.classList.remove('fa-tags');
mobileTabTagsIcon.classList.add('fa-th-list');
What I'm doing is a bit more involved than that. .... Here's a quick screenshot:
Since my forum is private I'm not replacing the Tags link I'm removing it and then adding the other ones that I need, and yes it loads dynamically (without a hard page reload).
