Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.0843776626721
Darker point darker score: -0.0697740458068
darker: E (eq: True, dd: None), confidence: 1, worker: AW0K78T4I2T72
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1AXIY3LLO186R
darker: 2 (eq: False, dd: False), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1E9VI5RSZI31F
darker: E (eq: True, dd: None), confidence: 2, worker: A3IPKVTS5K06LP
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2HN49IR90P3LR
(0: guessing, 1: probably, 2: definitely)