Useful CSS files for certain websites.
Each folder represents a website, and in them contain a CSS file (or multiple CSS files) that can be used on the website(s).
For CSS files that works on all websites (or filters itself based on mulitple websites), they'll most likely reside in the Any folder.
User styles are only ever stored in the !-User-Styles folder.
If you can't seem to find a style that used to be here, it likely doesn't work anymore and was put in the Ω - DEPRECATED folder.