Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.362453265674
Darker point darker score: 0.0828413827842
darker: 1 (eq: False, dd: True), confidence: 2, worker: A7PVOM63I6UH5 (marked invalid)
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3DY9JPLPQUN1O
darker: 1 (eq: False, dd: True), confidence: 2, worker: A3163PFOUKXQKA
darker: 2 (eq: False, dd: False), confidence: 2, worker: ANE1T9B3JJAS5
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1KF93C9NTOP42
darker: E (eq: True, dd: None), confidence: 2, worker: A2VVSQ1PSXKGVE
(0: guessing, 1: probably, 2: definitely)