Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.255157266124
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A3RQN5RZD1N2KP
darker: E (eq: True, dd: None), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2DNSD743W4OC2
darker: E (eq: True, dd: None), confidence: 2, worker: ACXUUWF75RR6C
darker: E (eq: True, dd: None), confidence: 2, worker: A3FB1E807EN22S
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1NX9Q0EAOPYN3
(0: guessing, 1: probably, 2: definitely)