This is exceedingly off-topic so feel free to flag, but real question, I happened to be browsing the news and saw some very odd written characters in the large

This is exceedingly off-topic so feel free to flag, but real question, I happened to be browsing the news and saw some very odd written characters in the large background here https://www.vox.com/2019/8/16/20807099/trump-tariffs-china-trade-policy-democrats https://www.vox.com/2019/8/16/20807099/trump-tariffs-china-t... This meeting is reportedly happening in shanghai, but those symbols look very vaguely like extremely ancient chinese and not remotely like anything modern. Can anyone explain them?