The defining characteristic of the series is its . By using only black, white, and red, artists are challenged to use the color red symbolically—representing everything from Harley’s classic costume to blood, passion, and emotional instability.

: The 2021 trade paperback collects all 17 digital issues plus two exclusive, all-new stories, totaling 19 tales.

: The anthology features high-profile industry talent including Stjepan Šejić, Paul Dini, Amanda Conner, Jimmy Palmiotti, and Adam Hughes. 2. Artistic Aesthetic and Themes

: Originally published weekly as 17 digital chapters starting June 26, 2020.

The series was created as part of the DC Digital First initiative during the COVID-19 pandemic to maintain content flow during physical distribution shutdowns.