Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.0544840012369
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 1, worker: A234WZ4KX8IW07
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1YQ4Z1018RM1R
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2K4WWF11Q0R9W
darker: E (eq: True, dd: None), confidence: 2, worker: A1JHVZIC3FH9LG
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1XA2WJ50VR7KQ (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A8MF3Y278EWK2
(0: guessing, 1: probably, 2: definitely)