As discussed on this thread for Esri Community https://community.esri.com/t5/community-feedback/can-we-have-a-geonet-dark-mode-or-change-graphical/...Same request for my.esri.com.
Hi Bill,
I would recommend posting this on the My Esri Ideas Board for better visibility - https://community.esri.com/t5/my-esri-ideas/idb-p/my-esri-ideas
