Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.251896680869
Darker point darker score: 0.903139874301
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1AKY7UPWR53YH
darker: 2 (eq: False, dd: True), confidence: 0, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 1, worker: A17AF8T628J0B9
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1SRPH3BGCHUOA
darker: 2 (eq: False, dd: True), confidence: 2, worker: A106BTOUPN1KRV
darker: E (eq: True, dd: None), confidence: 1, worker: A3163PFOUKXQKA
(0: guessing, 1: probably, 2: definitely)