Not even close to the IBM one. Think of icons/pictograms or animations, you can have use a library for that but you'll have to do your own custom styling to match it with your theme. Carbon is the most encompassing one that comes with lots of things you might need that are already integrated in style and patterns with the core framework.
Zulip in general is a great example of a large open source Django app that's been maintained and actively developed for a long time. I use it as a reference quite a lot.
