Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -1.03707549084
Darker point darker score: 0.124513841359
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2FQSVTAOL5GUC
darker: 1 (eq: False, dd: False), confidence: 1, worker: A2EKPA2DR5VSA8
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1Y5DMCQYLVL74
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1SRPH3BGCHUOA
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3PHP9TTAVN4Y4
darker: 1 (eq: False, dd: False), confidence: 1, worker: A1ZGOZQF2VZ0X9 (marked invalid)
(0: guessing, 1: probably, 2: definitely)