Hello I saw this chart from FT71 on ES. What do you think is the logic behind the green and red boxes?

FT71 plots StalkZones every day, which he defines as: "StalkZone™ levels are daily-updated trade decision zones where market engagement is expected to take place. It doesn’t necessarily mean that a trade will be taken in this area, but it is a pre-defined based on Volume Profile, Price Action, prior Order Flow and statistical expectancies. These are proprietary zones."

But those just look like your basic supply/demand zones.