Click on the wheel, and go to the settings button on the right side. On the right most column, there's a style drop down. Right now, it says "Clean". Just change it to dark and hit "Save Settings". Boom, dark mode.
You'll find we have a bunch of features, many of which we implemented prior to reddit implementing them. ..cough... badges. cough.... shout-outs. cough.... community podcast and others. We've been at this for almost 5 years. Welcome! Check out the primer page to learn more: https://hubski.com/primer
I checked out the badges. I don't quite understand how the wheel populates. I've seen a number of posts that have had a great deal of effort put into them and want to give stuff away. I certainly don't want to spam posts or anything, just get a basic idea of what exactly counts towards my ability to show another user that I appreciated their comment.
This guy, for example put a lot of effort into his story about TES.