Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.0726655657306
Darker point darker score: -0.9017178517
darker: E (eq: True, dd: None), confidence: 2, worker: AJBQ5XEHIF9Z1 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A2V9WRIAL9CJZT
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3QTG4DHHV2KD6
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1JEDFDBWHLA1F
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1NX9Q0EAOPYN3
darker: E (eq: True, dd: None), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1NX9Q0EAOPYN3
(0: guessing, 1: probably, 2: definitely)