Red point: darker
Green point: lighter
Blue point: equal
Darker point: 1
Darker reflectance: E
Darker method: C
Equal score: 0.11862986898
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 0, worker: A3B7AUU8YUZ4PZ (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A12DV2RIAQPV5J
darker: 1 (eq: False, dd: True), confidence: 1, worker: A1SNF5XJQ0205C
darker: E (eq: True, dd: None), confidence: 2, worker: A1XYJZ1AFNUURD
darker: E (eq: True, dd: None), confidence: 2, worker: AEHEZAYCPWF0E
darker: E (eq: True, dd: None), confidence: 2, worker: AH7WFV2TQYEW0 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A2A1D52ZPSW6L9
(0: guessing, 1: probably, 2: definitely)