Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.168715412924
Darker point darker score: -1.02735662197
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1NZVXB0S8DR04
darker: 1 (eq: False, dd: False), confidence: 2, worker: A11RO4HUQG8PKZ
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2C5CT4Y35F75B
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3UIVQJXY62XU8
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3IPKVTS5K06LP
(0: guessing, 1: probably, 2: definitely)