All of the UI boxes seem to flicker when looking at them in an upright position.  Tilting my head ~45 degrees on an angle seems to reduce the flickering.  It seems to be happening more when the gaze is on the box and there's a focus.  It's the white border caused by the gaze that flickers.

Not a huge problem, but it's something my prospects notice and they think there's either something wrong with the device or the app.