Allow passthrough as a visualisation style for Guardian
For many users this will just be a wall, I'd imagine. But still very useful for everyone else.
Especially with the max play area being as small as it is, you'll have a sizeable userbase with landmarks and things they'd like to see for spacial awareness outside the guardian bounds.
Even the wall is useful. "Hey bozo if you ignore the guardian you're gonna hit your head against this wall"