Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 1
Darker method: C
Equal score: -0.242289477774
Darker point darker score: 0.131266859725
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3O8YXPG1HGUH0
darker: 1 (eq: False, dd: True), confidence: 2, worker: A106BTOUPN1KRV
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2VVSQ1PSXKGVE
darker: 1 (eq: False, dd: True), confidence: 2, worker: A2XU16B4I9XQG5 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1NX9Q0EAOPYN3
darker: E (eq: True, dd: None), confidence: 2, worker: A3FVPDNQQLDFZH
(0: guessing, 1: probably, 2: definitely)