Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.299279781489
Darker point darker score: not computed since the judgement is "E"
darker: 2 (eq: False, dd: True), confidence: 2, worker: A2RUHINET2E1C5 (marked invalid)
darker: 2 (eq: False, dd: True), confidence: 0, worker: AUJPYSYU7YL5
darker: E (eq: True, dd: None), confidence: 2, worker: A3DHYTZ1GPN0T8
darker: E (eq: True, dd: None), confidence: 2, worker: A1JEDFDBWHLA1F
darker: E (eq: True, dd: None), confidence: 2, worker: A1NZVXB0S8DR04
darker: 2 (eq: False, dd: True), confidence: 1, worker: A3799NWTIYKCEV
darker: E (eq: True, dd: None), confidence: 1, worker: A3GFISRU6V2MG5
darker: E (eq: True, dd: None), confidence: 2, worker: A2VVSQ1PSXKGVE
darker: E (eq: True, dd: None), confidence: 2, worker: A1KITOCUU7GERN
(0: guessing, 1: probably, 2: definitely)