[tablespoon]

> The leds are placed on the chest -- seems like a miss to not place them also around the hoodie near the face.

Based on the documentation, all that would probably do is allow the effect to work at slightly closer distances:

> In addition, the LEDs need to be a minimum distance from the camera to be effective, as the cone of light from them needs to be wide enough to overlap with the cameras view of the wearers head. In practice, this is about 12ft (~3m).

Putting them on the chest would help with ergonomics. It would work even if you have the hood off and the LEDs would be more consistently positioned.