People who have been on the ground tour will know the secrets of the away changing room. Basically they made it grey as possible to make you feel more tired and lowered the ceiling also.
Newcastle NUFC Adidas original on ebay if anyone is interested
https://www.ebay.co.uk/itm/185538250035?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=XVaL3A3jSva&sssrc=2047675&ssuid=XVaL3A3jSva&widget_ver=artemis&media=COPY