Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -1.07317004459
Darker point darker score: -1.01278038708
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2RUHINET2E1C5 (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 1, worker: A1SRPH3BGCHUOA
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2Q1A5H715C3EK
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3B0M28EYT4K6
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2XU16B4I9XQG5 (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3DHYTZ1GPN0T8
darker: 1 (eq: False, dd: False), confidence: 2, worker: AKG5TLUQ2WWED
(0: guessing, 1: probably, 2: definitely)