Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.0606630756293
Darker point darker score: -0.908638351709
darker: 2 (eq: False, dd: False), confidence: 0, worker: A2C5CT4Y35F75B
darker: E (eq: True, dd: None), confidence: 0, worker: A1NO4LG6KGOGFD
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3A45A5YUM61LK
darker: 2 (eq: False, dd: False), confidence: 1, worker: A277RSAE4AKWW0
darker: E (eq: True, dd: None), confidence: 2, worker: A3IPKVTS5K06LP
(0: guessing, 1: probably, 2: definitely)