Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.216132039633
Darker point darker score: -0.907710403535
darker: 2 (eq: False, dd: False), confidence: 1, worker: A2EKPA2DR5VSA8
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1NJB5LJJPC7AS
darker: 2 (eq: False, dd: False), confidence: 1, worker: A2Q27LZW3VNDIP
darker: 1 (eq: False, dd: True), confidence: 1, worker: A2G053HOWRCZZ6 (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A1KF93C9NTOP42
darker: 1 (eq: False, dd: True), confidence: 2, worker: A369RBYR7J9MH7 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3PF1VER45OVPM
(0: guessing, 1: probably, 2: definitely)