Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.946021479497
Darker point darker score: -0.312827803717
darker: 2 (eq: False, dd: False), confidence: 1, worker: A2DTELFC4X0QJQ
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3DHYTZ1GPN0T8
darker: 1 (eq: False, dd: True), confidence: 2, worker: AQD91RFHV1WNE (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: AAOTQL1SCAC03
darker: 1 (eq: False, dd: True), confidence: 2, worker: A9Y1HKUEOOEPM
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3IPKVTS5K06LP
darker: 1 (eq: False, dd: True), confidence: 2, worker: A6KUVG49ZZ40M (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3QTG4DHHV2KD6
darker: 2 (eq: False, dd: False), confidence: 2, worker: A32M5FDKCPHMA
(0: guessing, 1: probably, 2: definitely)