Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.915418105452
Darker point darker score: 0.105608357001
darker: 2 (eq: False, dd: True), confidence: 1, worker: A21IZYCFI4AUYU
darker: 1 (eq: False, dd: False), confidence: 1, worker: A2LT5VXO2LS0UL
darker: 1 (eq: False, dd: False), confidence: 0, worker: A2K9VAUQ9I7CLT
darker: E (eq: True, dd: None), confidence: 1, worker: A1OTE7CRHWUOGJ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 0, worker: A3JK0EYQ2I82KS
darker: 2 (eq: False, dd: True), confidence: 2, worker: A106ZSJP3CLBE4
(0: guessing, 1: probably, 2: definitely)