The old gothic/German handwriting is hard to read for people in our days; it basically depicts who the nazis saw as 'Untermench'. Red: communists and other anti-fascists; Green: criminals; Black: prostitutes, alcoholics and other 'scum of the earth'; Purple: Jehovah's Witnesses and others 'who don't believe in Jesus in the right way'; Brown: gypsies, Romas and other 'travelers'; Pink: homosexuals. Blue: Immigrants. But not always the white ones.
Interestingly enough: exactly the same groups of people that are hated by people who are proudly 'anti-woke'. 🤔 Google for 'nazi classification symbols' for more information. Hope this helps.
