I have an oddball question and I'm hoping someone out here might have an answer: When Roy Thomas introduced the character of Jade back in All-Star Squadron and Infinity, Inc. she was presented as someone who had the ability to shift her skin color from being a white flesh tone to a green one. After Roy left DC for greener pastures in '89 it feels like every writer who has used her since has either forgotten she had this ability or just chosen to ignore this aspect of her character. Was there ever an in-continuity explanation as to how Jade lost the power to switch back and forth??