Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.211845914182
Darker point darker score: -0.214685279193
darker: 2 (eq: False, dd: False), confidence: 2, worker: A258PTOZ3D2TQR
darker: 2 (eq: False, dd: False), confidence: 2, worker: A14MXJ8GNYDWX1
darker: 1 (eq: False, dd: True), confidence: 2, worker: A237FGJCPV99GJ
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3QTG4DHHV2KD6
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1NX9Q0EAOPYN3
darker: E (eq: True, dd: None), confidence: 2, worker: A1Z3RPPYNUUT0Z
(0: guessing, 1: probably, 2: definitely)