Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: 2
Darker method: C
Equal score: -0.255675170523
Darker point darker score: -0.920417971529
darker: 2 (eq: False, dd: False), confidence: 1, worker: A1SEDRJVSUM4NZ (marked invalid)
darker: E (eq: True, dd: None), confidence: 0, worker: A3TCQK2G3LNZRW
darker: 2 (eq: False, dd: False), confidence: 1, worker: A2HCXQ6WTTL79C
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3JLJXKUPJX3J2
darker: E (eq: True, dd: None), confidence: 2, worker: A1MQPBGSL800TL
darker: 2 (eq: False, dd: False), confidence: 1, worker: A3UN57EC5AXY1Z
(0: guessing, 1: probably, 2: definitely)