Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.206325722765
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A3R5MEKMYYM2JX
darker: E (eq: True, dd: None), confidence: 2, worker: A1NQZHW4RY6IDR
darker: 2 (eq: False, dd: True), confidence: 1, worker: A1XX6ZVVS2UTO7 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A1NJB5LJJPC7AS
darker: E (eq: True, dd: None), confidence: 2, worker: A8DFFGPH3G3V5
darker: 2 (eq: False, dd: True), confidence: 2, worker: ALY6VKHUADU6F
(0: guessing, 1: probably, 2: definitely)