Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.0948585206028
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 2, worker: A2P0T88FJMZXUM
darker: E (eq: True, dd: None), confidence: 1, worker: A3GFISRU6V2MG5
darker: 2 (eq: False, dd: True), confidence: 0, worker: A29LON3TC6GCJN
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1KITOCUU7GERN
darker: 2 (eq: False, dd: True), confidence: 2, worker: A1L3348HFKSWBJ (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A27H0BKXDPJ543
(0: guessing, 1: probably, 2: definitely)