Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.887550313172
Darker point darker score: -0.903479020016
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3TO9R1Z7L6PZZ (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1AXG32WSJVY54
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1XVZCQ983ETMR
darker: 2 (eq: False, dd: False), confidence: 2, worker: AKHVTWTHW5VID
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3LHITZX5D9J9A
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2A42CU48PN8CX
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1BTE6I49HJW2V (marked invalid)
(0: guessing, 1: probably, 2: definitely)