Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.0248379606213
Darker point darker score: -0.883127353078
darker: 2 (eq: False, dd: False), confidence: 1, worker: A14P86I4JB46ET
darker: 2 (eq: False, dd: False), confidence: 0, worker: A1ZGOZQF2VZ0X9 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A2V9WRIAL9CJZT
darker: E (eq: True, dd: None), confidence: 2, worker: AW0K78T4I2T72
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1136V0RZUR5TO
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A7S0IDTDA59QN
(0: guessing, 1: probably, 2: definitely)