The electric locomotive appears to be reddish, though the pixels are not.pic.twitter.com/SLh1fzI5Vr
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
and this book (in Japanese) 北岡明佳 (2019) イラストレイテッド 錯視のしくみ 朝倉書店 ISBN978-4-254-10290-1 C3040pic.twitter.com/LZBWpJsuRp
the paper makes complete sense. thank you for sharing.
thank you! 
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.