Red point: darker
Green point: lighter
Blue point: equal
Darker point: 2
Darker reflectance: E
Darker method: C
Equal score: 0.121861108421
Darker point darker score: not computed since the judgement is "E"
darker: E (eq: True, dd: None), confidence: 1, worker: A2UKHWMBWV7LLU
darker: E (eq: True, dd: None), confidence: 0, worker: A32M5FDKCPHMA
darker: 2 (eq: False, dd: True), confidence: 2, worker: A39SAJGZKMYJE9 (marked invalid)
darker: E (eq: True, dd: None), confidence: 2, worker: A3PHP9TTAVN4Y4
darker: 2 (eq: False, dd: True), confidence: 2, worker: AEHEZAYCPWF0E
darker: E (eq: True, dd: None), confidence: 2, worker: A1136V0RZUR5TO
(0: guessing, 1: probably, 2: definitely)