This is such a clever way to automate so that the setup actually works. I just set it up, and wonder why the author didn’t set it up to trigger grayscale on app

This is such a clever way to automate so that the setup actually works. I just set it up, and wonder why the author didn’t set it up to trigger grayscale on app opening. I noticed that app switching also isn’t considered closing an app, so it seems most reliable to trigger on app open as well as close