Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.200088028115
Darker point darker score: -0.897309002174
darker: 1 (eq: False, dd: False), confidence: 0, worker: A1YQ4Z1018RM1R
darker: 1 (eq: False, dd: False), confidence: 0, worker: A3N21HBZFYFEXJ
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3Q9S2K93W2KDI (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1N274L13ZKKI5
darker: E (eq: True, dd: None), confidence: 1, worker: A1EY3KWGUA9A1N
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1NX9Q0EAOPYN3
(0: guessing, 1: probably, 2: definitely)