Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.138911352699
Darker point darker score: -0.073858913221
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3HFS9E2FHNXDR
darker: E (eq: True, dd: None), confidence: 0, worker: A2YUBS32Z1NI59
darker: 2 (eq: False, dd: False), confidence: 0, worker: A3GTLCTTVIMPOL
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3163PFOUKXQKA
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2CXAWVGQ6QQ2V
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3QJ53C8CUTJTS (marked invalid)
(0: guessing, 1: probably, 2: definitely)