Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.123550248364
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A3UC4JITM1QD1M
darker: 2 (eq: False, dd: True), confidence: 0, worker: AKH0WFAUBUKUS
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2FNC7KTCBF9IT
darker: E (eq: True, dd: None), confidence: 2, worker: A3BCQQ7TPUO8Q2 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2AH0I3IAWWNX7
darker: E (eq: True, dd: None), confidence: 2, worker: A1A50D6DABL6IK
(0: guessing, 1: probably, 2: definitely)