Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.889418938114
Darker point darker score: 0.455355771581
darker: 1 (eq: False, dd: True), confidence: 1, worker: AC6QZ6VSEIYK1
darker: 1 (eq: False, dd: True), confidence: 2, worker: A14MXJ8GNYDWX1
darker: 1 (eq: False, dd: True), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: AE6N096CSI5HT
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2Q0V5TIXSJJI3
darker: 1 (eq: False, dd: True), confidence: 2, worker: A1KITOCUU7GERN
(0: guessing, 1: probably, 2: definitely)