Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.913380456391
Darker point darker score: -0.159233808897
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3JB8CDV1SF2TH
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3A45A5YUM61LK
darker: 2 (eq: False, dd: False), confidence: 0, worker: A2YUKCBFNE5RGL
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1JHDIQ9MNML5N
darker: 2 (eq: False, dd: False), confidence: 0, worker: A32XWNZW2DQ6UZ
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2Z6WC0PX1L4UG (marked invalid)
(0: guessing, 1: probably, 2: definitely)