Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.136978312753
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1FQ1XLPXHS3LX
darker: E (eq: True, dd: None), confidence: 2, worker: AMDW925P9IY2O
darker: E (eq: True, dd: None), confidence: 2, worker: A2LT5VXO2LS0UL
darker: E (eq: True, dd: None), confidence: 2, worker: A2C1Z52F4B0CG1
darker: E (eq: True, dd: None), confidence: 2, worker: A2DNSD743W4OC2 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A11KMASRERFP0V
(0: guessing, 1: probably, 2: definitely)