When I read this topic, I saw a member that has black-red color account but his rating is 1123. I think it is a bug. You can check it here.
Link of the profile: https://mirror.codeforces.com/profile/suryakantpandey. Link of the shotscreen at 31/12/2020 8:23PM (GMT +7): https://ibb.co/m52W8pP
Thanks for reading.
P/S: I don't know about the Magic tab :D. This is my first New Year in Codeforces. Sorry for stupid question. I removed "bug report" tag.
P/S 2: For member who don't know about this problem like me, you can go to this link to change your color handle