Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 2
Darker method: C
Equal score: -0.172289396727
Darker point darker score: 0.151099734681
darker: 1 (eq: False, dd: False), confidence: 1, worker: A1YQ4Z1018RM1R
darker: 1 (eq: False, dd: False), confidence: 2, worker: A3UIVQJXY62XU8
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1DDY93NB8NESD
darker: 2 (eq: False, dd: True), confidence: 1, worker: AGO9QN7UEDUYL
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2LVDFUMN11HAS (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: A1Y5DMCQYLVL74
(0: guessing, 1: probably, 2: definitely)