Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.301166891681
Darker point darker score: -0.902821266239
darker: 2 (eq: False, dd: False), confidence: 0, worker: A1NO4LG6KGOGFD
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1N274L13ZKKI5
darker: E (eq: True, dd: None), confidence: 2, worker: A1UIID7X0JJZ63
darker: 2 (eq: False, dd: False), confidence: 1, worker: A20QBFTIO0MOL2
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1NX9Q0EAOPYN3
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
(0: guessing, 1: probably, 2: definitely)