Personally can't stand it. Just reminds me of a Hallowe'en Pride parade costume. Also, just confusing that the Joker is apparently going to an Orthodontist.
Not even sure why the Joker would ever be included in the Suicide Squad either in comics or an adaptation. It's not like he is a team player or has enough sense of self preservation to care about threats to his life by Amanda Waller.
But I realized that this was another comic movie that wasn't aimed at the people who read the comics after Will Smith was cast as Deadshot and Jesse Eisenburg as Lex Luthor.