Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: 1
Darker method: C
Equal score: -0.20103047391
Darker point darker score: -1.11060438055
darker: E (eq: True, dd: None), confidence: 2, worker: AE6N096CSI5HT
darker: 1 (eq: False, dd: False), confidence: 1, worker: A1AS714Z27IV3X (marked invalid)
darker: 1 (eq: False, dd: False), confidence: 2, worker: AQAKW9NW6Z61T
darker: 1 (eq: False, dd: False), confidence: 2, worker: A1NX9Q0EAOPYN3
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2K9VAUQ9I7CLT
darker: 1 (eq: False, dd: False), confidence: 2, worker: A2B8L88BUHVOO6
(0: guessing, 1: probably, 2: definitely)