Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.893088139757
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: AAC5XT7UY7B2K
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2925T8JYCYNN3 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2XU16B4I9XQG5 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3IPKVTS5K06LP
darker: E (eq: True, dd: None), confidence: 2, worker: A2TP6GDF71HM4M
darker: E (eq: True, dd: None), confidence: 2, worker: ANE1T9B3JJAS5
darker: E (eq: True, dd: None), confidence: 2, worker: A22BAUES1TIZS6
(0: guessing, 1: probably, 2: definitely)