Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.288352204913
Darker point darker score: -0.349898465764
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1OTE7CRHWUOGJ (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1W7PJXG8M38Z0
darker: 2 (eq: False, dd: False), confidence: 1, worker: AJZ5T6FTYGEOW
darker: 2 (eq: False, dd: False), confidence: 2, worker: A28P3ZGZB3XG9P
darker: 2 (eq: False, dd: False), confidence: 2, worker: A390HYGLCX40HE
darker: E (eq: True, dd: None), confidence: 2, worker: A3I9ULQRUOUHLP
(0: guessing, 1: probably, 2: definitely)