Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.0915057431469
Darker point darker score: 0.900473138961
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2FQSVTAOL5GUC
darker: 2 (eq: False, dd: True), confidence: 2, worker: A20QBFTIO0MOL2
darker: E (eq: True, dd: None), confidence: 2, worker: A1W02OZN6J9J0H
darker: E (eq: True, dd: None), confidence: 2, worker: A32XWNZW2DQ6UZ
darker: E (eq: True, dd: None), confidence: 2, worker: AFO6OUDRVZ317
darker: E (eq: True, dd: None), confidence: 2, worker: ATWGPR2A3M7WU (marked invalid)
(0: guessing, 1: probably, 2: definitely)