Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.0227468540553
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 1, worker: A1NQZHW4RY6IDR
darker: 1 (eq: False, dd: True), confidence: 1, worker: A168LFJNV9DSTS
darker: 2 (eq: False, dd: False), confidence: 0, worker: A10QRO2MWG7AZ7
darker: E (eq: True, dd: None), confidence: 2, worker: A18600UD6WUK0X
darker: E (eq: True, dd: None), confidence: 2, worker: A1XVZCQ983ETMR
darker: E (eq: True, dd: None), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
(0: guessing, 1: probably, 2: definitely)