By default, Discourse bundles icons from the excellent FontAwesome library. But there are a lot of free-to-use icon libraries out there. This topic is the home of alternative icon sets. It lists some theme components that you can try now, but it also describes how you can contribute to have Discourse support other icon sets.
Alternative icon sets
If you are interested in trying out a different icon set, here is a list of theme components that you can try out:
These components are a work in progress. You can use them, but note that not every single icon from core will have an appropriate replacement. (Contributions are welcome, though, see below.)
Phosphor Duotone (using the WCAG Light color scheme)
Contributing
Theme developers and designers, this section is for you.
The components listed above are generated using the discourse-alt-icons utility repository, which streamlines replacing icons in Discourse core with icons from other open source icon sets. The heart of the repository is a build script that generates a theme component from a JSON file of icon name mappings.
Contributions are welcome and encouraged. Discourse uses many icons from FontAwesome and finding matches from other icon sets is a fun task, but it is time-consuming. If you want to help, you can pull the discourse-alt-icons and follow the steps in the readme to add matches for icons that don’t yet have them.
Supporting other icon sets
Please use the replies below to propose adding support for another icon set. Or, even better, with a little bit of work you can send a pull request to the discourse-alt-icons repository. Note, that only icon sets with very permissive licenses (i.e. must allow modification, distribution, private use) will be considered.
This document is version controlled - suggest changes on github.
Nice suggestion, I added this and updated the OP with a screenshot. It doesn’t have a lot of icons, for example, it has no icons for the composer toolbar, but the icons it does have are quite nice. Thanks!
With a little bit of work, you (or anybody really), should be able to make a Phosphorus Regular repo from the duotone one. I’m happy to review and include it in the list here if we have a repo.
It seems that when we load one of those sets, the missing icons aren’t replaced by the default Font Awesome ones, so it’s just blank, not very usable…
I like the feather set, but it lacks many useful icons.
I’ve made a PR on the repo. Some changes are far from perfect, but a bad icon is still better than no icon at all
This is a fork of Feather, which is up-to-date. Feather has only 287 icons, Lucide has 1701 (and they have, of course, most if not all the missing icons).
Both sets are under MIT licence.
So I guess in this case support for Feather should be dropped, and replaced by Lucide.
My pull request seems a bit meaningless now
Perhaps I can try creating a repo for this set, if approved by the team…
!