You'll need to install manually, it's been months since I've heard from Sam, so idk when the PR will be added.
npm install git+https://github.com/yariplus/nodebb-theme-persona.git#creepr
If you just want to add subcategories to your own theme, the needed changes are in my last commit.
Alright so I am starting to make progress. Next bump in the road is categories merging together. The home page looks fine. But once inside a category where I have other categories There is no spacing bewteen them. This is the same for moble or desktop. Any ideas? Also is there a way to change the category size from inside the software? Thanks.