00 — camera
runs entirely on-device. no frame is ever sent anywhere.
01 — subject region
exposure 0
02 — background region
exposure 0
03 — mask sensitivity
threshold 0.50 — lower catches more as "subject"
04 — grain
grain 4px
05 — palette
06 — compare
atkinson subject / bayer 4×4 background · grain 4px0 × 0