Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.0830190057322
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: False), confidence: 2, worker: A1NZVXB0S8DR04
darker: 1 (eq: False, dd: True), confidence: 2, worker: A7WI4XSAIFD7J (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A37AJI03M37NPJ
darker: E (eq: True, dd: None), confidence: 2, worker: A30M7MYW1BHQN1
darker: E (eq: True, dd: None), confidence: 2, worker: A3E3QXLHXAGY4Y
darker: 1 (eq: False, dd: True), confidence: 1, worker: A3DHYTZ1GPN0T8
(0: guessing, 1: probably, 2: definitely)