Headscratchers / Flashpoint (DC Comics)

• Why does the Joker have green hair, red lips, and white skin? This one's origin story is not a chemical bath, so why keep the similar appearance? Unless, of course, it was done to surprise the reader when their identity is revealed, but there's still no explanation for anything but the smile.
  • It's possible like the Joker in the original timeline, she first became the leader of a group of crooks, donning the mantle of the Red Hood, and a heist at the Ace Chemicals (or Axis Chemicals) went bad, which results in the green hair, red lips, and white skin.
  • You don't necessarily need a chemical bath, just makeup will suffice (as Ledger and Leto proved). The bleached skin could come from a chemical bath at most, or she might have gotten paler skin over what happened.
• How is it that things that pre-date Barry's mother's death (JSA) and things occurring off planet (events of Abin Sur's death) are changed?
  • The fact that Barry's mom was saved wasn't the issue, it was that he caused a paradox while inside the Speed Force, which is linked to time. The changes essentially rippled outward into the past and future, from Earth to the stars.
  • Also, not to nitpick (1. because I could just be misunderstanding, and 2. because it's completely beside the point of your question), but are you suggesting that Abin Sur died and passed on his ring to Hal Jordan before Nora Allen died, which happened while Barry (Hal's contemporary, who debuted as the Flash a full three years before Abin Sur died) was still a child?
  • I think it's safe to say that Dr Manhattan did it.