Jekyll minima dark skin not applying

I changed my skin to dark in config.yml, however the website remains unchanged and continues to use the default skin. I have already tried running it locally and I run into the same issue, I have updated minima.

The default version of Minima is v2, but I think skins were added later on the v3 development branch (main).

The v3 ReadMe has instructions on how to use the development branch: