Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.695216677246
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 1, worker: A3GFISRU6V2MG5
darker: 1 (eq: False, dd: True), confidence: 1, worker: AXCPRXO08DFAH (marked invalid)
darker: E (eq: True, dd: None), confidence: 0, worker: AX720MTAR52TX
darker: 1 (eq: False, dd: True), confidence: 0, worker: A29LON3TC6GCJN
darker: E (eq: True, dd: None), confidence: 2, worker: A1NJB5LJJPC7AS
darker: E (eq: True, dd: None), confidence: 2, worker: ANE1T9B3JJAS5
(0: guessing, 1: probably, 2: definitely)