Fix for magic.freizeitspieler.de (#2992)
Fix for magic.freizeitspieler.de (#2992)

- Remove background-image from body
- Invert logo
- Resolves #580
alexanderby/darkreader,darkreader/darkreader,darkreader/darkreader,alexanderby/darkreader,alexanderby/darkreader,darkreader/darkreader