Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.127194239616
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1XA2WJ50VR7KQ (marked invalid)
darker: E (eq: True, dd: None), confidence: 1, worker: AG0X3PQK2FWQJ
darker: 1 (eq: False, dd: True), confidence: 1, worker: A92IZM4P9SJ2S
darker: E (eq: True, dd: None), confidence: 2, worker: A1A50D6DABL6IK
darker: E (eq: True, dd: None), confidence: 1, worker: AE6N096CSI5HT
darker: E (eq: True, dd: None), confidence: 2, worker: A36XRHW6R8MU0C
(0: guessing, 1: probably, 2: definitely)