Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.131935668898
Darker point darker score: -0.0689441696338
darker: 2 (eq: False, dd: False), confidence: 0, worker: A3UC4JITM1QD1M
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3PKLLRKQ7VUVN (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3RJ8NZQ8BRTZM (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A8DFFGPH3G3V5
darker: E (eq: True, dd: None), confidence: 0, worker: A3UC4JITM1QD1M
darker: 2 (eq: False, dd: False), confidence: 2, worker: AEHEZAYCPWF0E
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3GTIIFSMHAKRZ
(0: guessing, 1: probably, 2: definitely)