Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.137411644546
Darker point darker score: not computed since the judgement is "E"
darker: 1 (eq: False, dd: True), confidence: 2, worker: A4892CRV9RU49
darker: E (eq: True, dd: None), confidence: 1, worker: APROFW08F7Z34
darker: 1 (eq: False, dd: True), confidence: 0, worker: A3PIU3R3IE6VDW
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1PGQZ8N5QB4F4 (marked invalid)
darker: E (eq: True, dd: None), confidence: 0, worker: A3163PFOUKXQKA
darker: E (eq: True, dd: None), confidence: 2, worker: A3JKYHQMKDV1Y9
darker: 1 (eq: False, dd: True), confidence: 2, worker: A360B58589TBUS (marked invalid)
(0: guessing, 1: probably, 2: definitely)