My first impression is that it looks like an "exit" sign. It resembles going through a doorway like this (https://www.iso.org/obp/ui#iso:grs:7010:E002 https://w

My first impression is that it looks like an "exit" sign. It resembles going through a doorway like this (https://www.iso.org/obp/ui#iso:grs:7010:E002 https://www.iso.org/obp/ui#iso:grs:7010:E002)