Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.943910949201
Darker point darker score: -0.990734095332
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2XU16B4I9XQG5 (marked invalid)
darker: 2 (eq: False, dd: False), confidence: 2, worker: AIKBREX7SEPXE
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1TIL0S71V1JA0
darker: 2 (eq: False, dd: False), confidence: 2, worker: A3163PFOUKXQKA
darker: 2 (eq: False, dd: False), confidence: 2, worker: A2ZRJMJTE6ID97
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1NX9Q0EAOPYN3
darker: E (eq: True, dd: None), confidence: 2, worker: A3BCQQ7TPUO8Q2 (marked invalid)
(0: guessing, 1: probably, 2: definitely)