Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.0716643936779
Darker point darker score: 0.0319941968467
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3IPKVTS5K06LP
darker: 2 (eq: False, dd: True), confidence: 2, worker: AO2JIXLS5MIC5 (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 0, worker: A29VL3MZE7YPBZ
darker: E (eq: True, dd: None), confidence: 0, worker: A3UC4JITM1QD1M
darker: 1 (eq: False, dd: False), confidence: 0, worker: A3TVDFJ22T1FFN (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1SNF5XJQ0205C
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3LNPBZXHKKAA7
(0: guessing, 1: probably, 2: definitely)