Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.88779228324
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 1, worker: A3JB8CDV1SF2TH
darker: E (eq: True, dd: None), confidence: 1, worker: A1DRFDGG2KCOI2 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3163PFOUKXQKA
darker: E (eq: True, dd: None), confidence: 2, worker: ARTQWWNFA7IOD
darker: E (eq: True, dd: None), confidence: 2, worker: A32M5FDKCPHMA
darker: E (eq: True, dd: None), confidence: 2, worker: AKG5TLUQ2WWED
(0: guessing, 1: probably, 2: definitely)