Neurodivergent Infinity Flag3' x 5' Neurodivergent Infinity Flag with grommets and double stitched edges to reduce fraying. The Design: The Neurodiversity Pride Flag features the rainbow infinity first created to represent neurodiversity for Autistic Pride Day in 2005. While the Autism Awareness and Pride Flag has this on a gold background (the chemical symbol for which is AU) the flag features it on a white background representing all forms of neurodiversity.