Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.417577696593
Darker point darker score: -0.0570131046936
darker: 1 (eq: False, dd: True), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 1, worker: A23AWSZSAGLY8X
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2CQLD1RK8ZQ7D
darker: 2 (eq: False, dd: False), confidence: 0, worker: A167L9XCC3KHPF
darker: E (eq: True, dd: None), confidence: 1, worker: A1EY3KWGUA9A1N
darker: 2 (eq: False, dd: False), confidence: 2, worker: AKLZPOBB3YA33
(0: guessing, 1: probably, 2: definitely)