Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.0219613275079
Darker point darker score: 0.0369265937271
darker: 1 (eq: False, dd: False), confidence: 1, worker: A3RLTUXIM8TU3K (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 0, worker: AW0K78T4I2T72
darker: E (eq: True, dd: None), confidence: 2, worker: AW0K78T4I2T72
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1SNF5XJQ0205C
darker: E (eq: True, dd: None), confidence: 2, worker: A2MZLVT9DB9MGK
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1D2E3QRL7O43T
darker: E (eq: True, dd: None), confidence: 2, worker: AH7WFV2TQYEW0 (marked invalid)
(0: guessing, 1: probably, 2: definitely)