Hello! Please see https://www.eff.org/privacybadger#faq-What-do-the-red,-yellow-and-green-sliders-in-the-Privacy-Badger-menu-mean? for the answer. (You may have to manually copy and paste the entire URL including the question mark, not sure it will get turned into a link properly.)

Generally speaking, I wouldn't worry about the sliders and just let Privacy Badger learn what to block on its own. When Privacy Badger breaks a page, just click on the Disable Privacy Badger for This Site button in the popup.

To get help with Privacy Badger in the future, please visit our GitHub issue tracker at https://github.com/EFForg/privacybadger/issues, or email extension-devs@eff.org.